diff --git a/modules/sdk-coin-sol/CHANGELOG.md b/modules/sdk-coin-sol/CHANGELOG.md
index eb912ffa27..7b19118507 100644
--- a/modules/sdk-coin-sol/CHANGELOG.md
+++ b/modules/sdk-coin-sol/CHANGELOG.md
@@ -7,182 +7,99 @@ See [Conventional Commits](https://conventionalcommits.org) for commit guideline
 
 **Note:** Version bump only for package @bitgo/sdk-coin-sol
 
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 ## [7.10.3](https://github.com/BitGo/BitGoJS/compare/@bitgo/sdk-coin-sol@7.10.2...@bitgo/sdk-coin-sol@7.10.3) (2025-12-11)
 
 **Note:** Version bump only for package @bitgo/sdk-coin-sol
 
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 ## [7.10.2](https://github.com/BitGo/BitGoJS/compare/@bitgo/sdk-coin-sol@7.10.1...@bitgo/sdk-coin-sol@7.10.2) (2025-12-05)
 
 **Note:** Version bump only for package @bitgo/sdk-coin-sol
 
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 ## [7.10.1](https://github.com/BitGo/BitGoJS/compare/@bitgo/sdk-coin-sol@7.10.0...@bitgo/sdk-coin-sol@7.10.1) (2025-12-04)
 
 **Note:** Version bump only for package @bitgo/sdk-coin-sol
 
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 # [7.10.0](https://github.com/BitGo/BitGoJS/compare/@bitgo/sdk-coin-sol@7.9.0...@bitgo/sdk-coin-sol@7.10.0) (2025-11-26)
 
-
 ### Features
 
-* **sdk-coin-sol:** big endian support for verifyTransaction ([f1c06bc](https://github.com/BitGo/BitGoJS/commit/f1c06bc6bf0f448fbd1c2dbcd5062e7e6f012c83))
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+- **sdk-coin-sol:** big endian support for verifyTransaction ([f1c06bc](https://github.com/BitGo/BitGoJS/commit/f1c06bc6bf0f448fbd1c2dbcd5062e7e6f012c83))
 
 # [7.9.0](https://github.com/BitGo/BitGoJS/compare/@bitgo/sdk-coin-sol@7.8.0...@bitgo/sdk-coin-sol@7.9.0) (2025-11-19)
 
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 ### Features
 
-* bump public types ([bab6c62](https://github.com/BitGo/BitGoJS/commit/bab6c624682c1317456376e6bf7e6691224405b9))
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+- bump public types ([bab6c62](https://github.com/BitGo/BitGoJS/commit/bab6c624682c1317456376e6bf7e6691224405b9))
 
 # [7.8.0](https://github.com/BitGo/BitGoJS/compare/@bitgo/sdk-coin-sol@7.7.0...@bitgo/sdk-coin-sol@7.8.0) (2025-11-13)
 
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 ### Features
 
-* **sdk-coin-sol:** classify all WalletConnect transactions as custom using memo ([1f639da](https://github.com/BitGo/BitGoJS/commit/1f639da78dbc2c144ee0a4cc9741d03f036717bf))
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+- **sdk-coin-sol:** classify all WalletConnect transactions as custom using memo ([1f639da](https://github.com/BitGo/BitGoJS/commit/1f639da78dbc2c144ee0a4cc9741d03f036717bf))
 
 # [7.7.0](https://github.com/BitGo/BitGoJS/compare/@bitgo/sdk-coin-sol@7.6.3...@bitgo/sdk-coin-sol@7.7.0) (2025-11-12)
 
-
 ### Features
 
-* **sdk-coin-sol:** accepting idempotent ATA instructions ([2b41681](https://github.com/BitGo/BitGoJS/commit/2b41681b280d7852cf8b547ba3759137cb31dd30))
-* **sdk-coin-sol:** support SetComputeUnitLimit instructions ([307dca3](https://github.com/BitGo/BitGoJS/commit/307dca3b1728b49954e78dc2bfa56f6e22f22ba5))
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+- **sdk-coin-sol:** accepting idempotent ATA instructions ([2b41681](https://github.com/BitGo/BitGoJS/commit/2b41681b280d7852cf8b547ba3759137cb31dd30))
+- **sdk-coin-sol:** support SetComputeUnitLimit instructions ([307dca3](https://github.com/BitGo/BitGoJS/commit/307dca3b1728b49954e78dc2bfa56f6e22f22ba5))
 
 ## [7.6.3](https://github.com/BitGo/BitGoJS/compare/@bitgo/sdk-coin-sol@7.6.2...@bitgo/sdk-coin-sol@7.6.3) (2025-11-06)
 
 **Note:** Version bump only for package @bitgo/sdk-coin-sol
 
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 ## [7.6.2](https://github.com/BitGo/BitGoJS/compare/@bitgo/sdk-coin-sol@7.6.1...@bitgo/sdk-coin-sol@7.6.2) (2025-10-31)
 
 **Note:** Version bump only for package @bitgo/sdk-coin-sol
 
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 ## [7.6.1](https://github.com/BitGo/BitGoJS/compare/@bitgo/sdk-coin-sol@7.6.0...@bitgo/sdk-coin-sol@7.6.1) (2025-10-29)
 
 **Note:** Version bump only for package @bitgo/sdk-coin-sol
 
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 # [7.6.0](https://github.com/BitGo/BitGoJS/compare/@bitgo/sdk-coin-sol@7.5.0...@bitgo/sdk-coin-sol@7.6.0) (2025-10-24)
 
-
 ### Features
 
-* **sdk-coin-sol:** implement isWalletAddress for address verfn ([e42fb85](https://github.com/BitGo/BitGoJS/commit/e42fb85505c1fe9d5fe7d18f227377e2d844af77))
-* **sdk-core:** add typing on fetch addresses ([f3dec74](https://github.com/BitGo/BitGoJS/commit/f3dec74befc76bb305a4f9ac72975e4de43787ff))
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-
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+- **sdk-coin-sol:** implement isWalletAddress for address verfn ([e42fb85](https://github.com/BitGo/BitGoJS/commit/e42fb85505c1fe9d5fe7d18f227377e2d844af77))
+- **sdk-core:** add typing on fetch addresses ([f3dec74](https://github.com/BitGo/BitGoJS/commit/f3dec74befc76bb305a4f9ac72975e4de43787ff))
 
 # [7.5.0](https://github.com/BitGo/BitGoJS/compare/@bitgo/sdk-coin-sol@7.4.0...@bitgo/sdk-coin-sol@7.5.0) (2025-10-21)
 
-
 ### Features
 
-* **sdk-coin-sol:** add recentBlockhash to custom versioned solana tx flow ([191eb86](https://github.com/BitGo/BitGoJS/commit/191eb86aa851cc893b216f23ff0ad3f13423cc2d))
-* **sdk-coin-sol:** update verifyTransaction for versioned sol tx ([11b1723](https://github.com/BitGo/BitGoJS/commit/11b1723718c13f5ef26ef90174ad299edf64aa2a))
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+- **sdk-coin-sol:** add recentBlockhash to custom versioned solana tx flow ([191eb86](https://github.com/BitGo/BitGoJS/commit/191eb86aa851cc893b216f23ff0ad3f13423cc2d))
+- **sdk-coin-sol:** update verifyTransaction for versioned sol tx ([11b1723](https://github.com/BitGo/BitGoJS/commit/11b1723718c13f5ef26ef90174ad299edf64aa2a))
 
 # [7.4.0](https://github.com/BitGo/BitGoJS/compare/@bitgo/sdk-coin-sol@7.3.0...@bitgo/sdk-coin-sol@7.4.0) (2025-10-16)
 
-
 ### Features
 
-* bump public types ([ca817a6](https://github.com/BitGo/BitGoJS/commit/ca817a637015a33584fd68dbf5c36592b6a13608))
-* **sdk-coin-sol:** inject durable nonce for versioned transactions ([b6d7524](https://github.com/BitGo/BitGoJS/commit/b6d7524b06568c51626fce231a119e15abe86365))
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+- bump public types ([ca817a6](https://github.com/BitGo/BitGoJS/commit/ca817a637015a33584fd68dbf5c36592b6a13608))
+- **sdk-coin-sol:** inject durable nonce for versioned transactions ([b6d7524](https://github.com/BitGo/BitGoJS/commit/b6d7524b06568c51626fce231a119e15abe86365))
 
 # [7.3.0](https://github.com/BitGo/BitGoJS/compare/@bitgo/sdk-coin-sol@7.2.3...@bitgo/sdk-coin-sol@7.3.0) (2025-10-13)
 
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 ### Features
 
-* support versioned sol transactions with customTx intent ([b33402f](https://github.com/BitGo/BitGoJS/commit/b33402f9a7c4724804a2f45737fcbd2562f6bb3e))
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+- support versioned sol transactions with customTx intent ([b33402f](https://github.com/BitGo/BitGoJS/commit/b33402f9a7c4724804a2f45737fcbd2562f6bb3e))
 
 ## [7.2.3](https://github.com/BitGo/BitGoJS/compare/@bitgo/sdk-coin-sol@7.2.2...@bitgo/sdk-coin-sol@7.2.3) (2025-10-10)
 
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 ### Bug Fixes
 
-* upgrade public types version ([49cb5b1](https://github.com/BitGo/BitGoJS/commit/49cb5b1f07bf63ae0fab7feb5f55457f641ada9f))
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+- upgrade public types version ([49cb5b1](https://github.com/BitGo/BitGoJS/commit/49cb5b1f07bf63ae0fab7feb5f55457f641ada9f))
 
 ## [7.2.2](https://github.com/BitGo/BitGoJS/compare/@bitgo/sdk-coin-sol@7.2.1...@bitgo/sdk-coin-sol@7.2.2) (2025-10-09)
 
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 ### Bug Fixes
 
-* run check-fmt on code files only ([9745196](https://github.com/BitGo/BitGoJS/commit/9745196b02b9678c740d290a4638ceb153a8fd75))
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-
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+- run check-fmt on code files only ([9745196](https://github.com/BitGo/BitGoJS/commit/9745196b02b9678c740d290a4638ceb153a8fd75))
 
 ## [7.2.1](https://github.com/BitGo/BitGoJS/compare/@bitgo/sdk-coin-sol@7.2.0...@bitgo/sdk-coin-sol@7.2.1) (2025-10-08)
 
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 ### Bug Fixes
 
-* add explicit 'files' in package json ([3b00373](https://github.com/BitGo/BitGoJS/commit/3b0037396f6ac16bb9380bd85bf37f2b133068f4))
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-
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+- add explicit 'files' in package json ([3b00373](https://github.com/BitGo/BitGoJS/commit/3b0037396f6ac16bb9380bd85bf37f2b133068f4))
 
 # [7.2.0](https://github.com/BitGo/BitGoJS/compare/@bitgo/sdk-coin-sol@7.1.0...@bitgo/sdk-coin-sol@7.2.0) (2025-10-02)
 
diff --git a/modules/sdk-coin-sol/scripts/README.md b/modules/sdk-coin-sol/scripts/README.md
index 90754ddf88..e6f1fbbde2 100644
--- a/modules/sdk-coin-sol/scripts/README.md
+++ b/modules/sdk-coin-sol/scripts/README.md
@@ -5,15 +5,17 @@
 Determines safe transaction limits for Solana legacy transactions (1232 byte limit).
 
 **Run:**
+
 ```bash
 npx tsx modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts
 ```
 
 **Output:**
+
 - Console: Test results and recommended limits
 - File: `transaction-size-benchmark-results.json`
 
 **Tests:**
+
 - Token transfers with ATA creation (new recipients)
 - Token transfers without ATA creation (existing accounts)
-
diff --git a/modules/sdk-coin-sol/scripts/transaction-size-benchmark-results.json b/modules/sdk-coin-sol/scripts/transaction-size-benchmark-results.json
new file mode 100644
index 0000000000..bcb32e1f7a
--- /dev/null
+++ b/modules/sdk-coin-sol/scripts/transaction-size-benchmark-results.json
@@ -0,0 +1,362 @@
+{
+  "timestamp": "2025-12-26T06:44:40.505Z",
+  "solanaLegacyTxSizeLimit": 1232,
+  "withAtaCreation": {
+    "maxSafe": 9,
+    "conservative": 8,
+    "testResults": [
+      {
+        "recipientCount": 1,
+        "withAtaCreation": true,
+        "instructionCount": 3,
+        "payloadSize": 478,
+        "isVersioned": false,
+        "success": true
+      },
+      {
+        "recipientCount": 5,
+        "withAtaCreation": true,
+        "instructionCount": 11,
+        "payloadSize": 842,
+        "isVersioned": false,
+        "success": true
+      },
+      {
+        "recipientCount": 6,
+        "withAtaCreation": true,
+        "instructionCount": 13,
+        "payloadSize": 933,
+        "isVersioned": false,
+        "success": true
+      },
+      {
+        "recipientCount": 7,
+        "withAtaCreation": true,
+        "instructionCount": 15,
+        "payloadSize": 1024,
+        "isVersioned": false,
+        "success": true
+      },
+      {
+        "recipientCount": 8,
+        "withAtaCreation": true,
+        "instructionCount": 17,
+        "payloadSize": 1115,
+        "isVersioned": false,
+        "success": true
+      },
+      {
+        "recipientCount": 9,
+        "withAtaCreation": true,
+        "instructionCount": 19,
+        "payloadSize": 1206,
+        "isVersioned": false,
+        "success": true
+      },
+      {
+        "recipientCount": 10,
+        "withAtaCreation": true,
+        "instructionCount": 21,
+        "payloadSize": 1232,
+        "isVersioned": false,
+        "success": false,
+        "error": "Transaction too large: 1297 > 1232",
+        "errorStack": "Error: Transaction too large: 1297 > 1232\n    at invariant (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/utils/assert.ts:6:11)\n    at _serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:860:5)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:832:17)\n    at Transaction.toBroadcastFormat (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transaction.ts:275:33)\n    at testTransactionSize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:87:29)\n    at async runBenchmark (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:160:20)"
+      },
+      {
+        "recipientCount": 12,
+        "withAtaCreation": true,
+        "instructionCount": 25,
+        "payloadSize": 1414,
+        "isVersioned": false,
+        "success": false,
+        "error": "Transaction too large: 1479 > 1232",
+        "errorStack": "Error: Transaction too large: 1479 > 1232\n    at invariant (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/utils/assert.ts:6:11)\n    at _serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:860:5)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:832:17)\n    at Transaction.toBroadcastFormat (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transaction.ts:275:33)\n    at testTransactionSize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:87:29)\n    at async runBenchmark (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:160:20)"
+      },
+      {
+        "recipientCount": 13,
+        "withAtaCreation": true,
+        "instructionCount": 27,
+        "payloadSize": 1505,
+        "isVersioned": false,
+        "success": false,
+        "error": "Transaction too large: 1570 > 1232",
+        "errorStack": "Error: Transaction too large: 1570 > 1232\n    at invariant (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/utils/assert.ts:6:11)\n    at _serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:860:5)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:832:17)\n    at Transaction.toBroadcastFormat (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transaction.ts:275:33)\n    at testTransactionSize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:87:29)\n    at async runBenchmark (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:160:20)"
+      },
+      {
+        "recipientCount": 14,
+        "withAtaCreation": true,
+        "instructionCount": 29,
+        "payloadSize": 1596,
+        "isVersioned": false,
+        "success": false,
+        "error": "Transaction too large: 1661 > 1232",
+        "errorStack": "Error: Transaction too large: 1661 > 1232\n    at invariant (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/utils/assert.ts:6:11)\n    at _serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:860:5)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:832:17)\n    at Transaction.toBroadcastFormat (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transaction.ts:275:33)\n    at testTransactionSize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:87:29)\n    at async runBenchmark (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:160:20)"
+      },
+      {
+        "recipientCount": 15,
+        "withAtaCreation": true,
+        "instructionCount": 31,
+        "payloadSize": 1687,
+        "isVersioned": false,
+        "success": false,
+        "error": "Transaction too large: 1752 > 1232",
+        "errorStack": "Error: Transaction too large: 1752 > 1232\n    at invariant (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/utils/assert.ts:6:11)\n    at _serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:860:5)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:832:17)\n    at Transaction.toBroadcastFormat (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transaction.ts:275:33)\n    at testTransactionSize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:87:29)\n    at async runBenchmark (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:160:20)"
+      },
+      {
+        "recipientCount": 16,
+        "withAtaCreation": true,
+        "instructionCount": 33,
+        "payloadSize": 1778,
+        "isVersioned": false,
+        "success": false,
+        "error": "Transaction too large: 1843 > 1232",
+        "errorStack": "Error: Transaction too large: 1843 > 1232\n    at invariant (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/utils/assert.ts:6:11)\n    at _serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:860:5)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:832:17)\n    at Transaction.toBroadcastFormat (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transaction.ts:275:33)\n    at testTransactionSize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:87:29)\n    at async runBenchmark (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:160:20)"
+      },
+      {
+        "recipientCount": 17,
+        "withAtaCreation": true,
+        "instructionCount": 35,
+        "payloadSize": 1869,
+        "isVersioned": false,
+        "success": false,
+        "error": "Transaction too large: 1934 > 1232",
+        "errorStack": "Error: Transaction too large: 1934 > 1232\n    at invariant (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/utils/assert.ts:6:11)\n    at _serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:860:5)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:832:17)\n    at Transaction.toBroadcastFormat (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transaction.ts:275:33)\n    at testTransactionSize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:87:29)\n    at async runBenchmark (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:160:20)"
+      },
+      {
+        "recipientCount": 18,
+        "withAtaCreation": true,
+        "instructionCount": 37,
+        "payloadSize": 1960,
+        "isVersioned": false,
+        "success": false,
+        "error": "Transaction too large: 2025 > 1232",
+        "errorStack": "Error: Transaction too large: 2025 > 1232\n    at invariant (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/utils/assert.ts:6:11)\n    at _serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:860:5)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:832:17)\n    at Transaction.toBroadcastFormat (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transaction.ts:275:33)\n    at testTransactionSize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:87:29)\n    at async runBenchmark (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:160:20)"
+      },
+      {
+        "recipientCount": 20,
+        "withAtaCreation": true,
+        "instructionCount": 41,
+        "payloadSize": 2048,
+        "isVersioned": false,
+        "success": false,
+        "error": "Transaction too large: 2113 > 1232",
+        "errorStack": "Error: Transaction too large: 2113 > 1232\n    at invariant (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/utils/assert.ts:6:11)\n    at _serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:860:5)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:832:17)\n    at Transaction.toBroadcastFormat (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transaction.ts:275:33)\n    at testTransactionSize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:87:29)\n    at async runBenchmark (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:160:20)"
+      },
+      {
+        "recipientCount": 25,
+        "withAtaCreation": true,
+        "instructionCount": 51,
+        "payloadSize": 2048,
+        "isVersioned": false,
+        "success": false,
+        "error": "Transaction too large: 2113 > 1232",
+        "errorStack": "Error: Transaction too large: 2113 > 1232\n    at invariant (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/utils/assert.ts:6:11)\n    at _serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:860:5)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:832:17)\n    at Transaction.toBroadcastFormat (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transaction.ts:275:33)\n    at testTransactionSize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:87:29)\n    at async runBenchmark (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:160:20)"
+      },
+      {
+        "recipientCount": 30,
+        "withAtaCreation": true,
+        "instructionCount": 0,
+        "payloadSize": 0,
+        "isVersioned": false,
+        "success": false,
+        "error": "encoding overruns Uint8Array",
+        "errorStack": "RangeError: encoding overruns Uint8Array\n    at Blob.encode (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/buffer-layout/src/Layout.ts:2294:13)\n    at <anonymous> (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/buffer-layout/src/Layout.ts:1059:25)\n    at Array.reduce (<anonymous>)\n    at Sequence.encode (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/buffer-layout/src/Layout.ts:1058:30)\n    at Structure.encode (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/buffer-layout/src/Layout.ts:1205:26)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/message/legacy.ts:260:35)\n    at _partialSign (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:724:30)\n    at partialSign (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:717:10)\n    at TokenTransferBuilder.buildLegacyTransaction (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transactionBuilder.ts:199:10)\n    at TokenTransferBuilder.buildSolTransaction (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transactionBuilder.ts:155:19)"
+      }
+    ]
+  },
+  "withoutAtaCreation": {
+    "maxSafe": 19,
+    "conservative": 17,
+    "testResults": [
+      {
+        "recipientCount": 1,
+        "withAtaCreation": false,
+        "instructionCount": 2,
+        "payloadSize": 340,
+        "isVersioned": false,
+        "success": true
+      },
+      {
+        "recipientCount": 10,
+        "withAtaCreation": false,
+        "instructionCount": 11,
+        "payloadSize": 781,
+        "isVersioned": false,
+        "success": true
+      },
+      {
+        "recipientCount": 11,
+        "withAtaCreation": false,
+        "instructionCount": 12,
+        "payloadSize": 830,
+        "isVersioned": false,
+        "success": true
+      },
+      {
+        "recipientCount": 12,
+        "withAtaCreation": false,
+        "instructionCount": 13,
+        "payloadSize": 879,
+        "isVersioned": false,
+        "success": true
+      },
+      {
+        "recipientCount": 13,
+        "withAtaCreation": false,
+        "instructionCount": 14,
+        "payloadSize": 928,
+        "isVersioned": false,
+        "success": true
+      },
+      {
+        "recipientCount": 14,
+        "withAtaCreation": false,
+        "instructionCount": 15,
+        "payloadSize": 977,
+        "isVersioned": false,
+        "success": true
+      },
+      {
+        "recipientCount": 15,
+        "withAtaCreation": false,
+        "instructionCount": 16,
+        "payloadSize": 1026,
+        "isVersioned": false,
+        "success": true
+      },
+      {
+        "recipientCount": 16,
+        "withAtaCreation": false,
+        "instructionCount": 17,
+        "payloadSize": 1075,
+        "isVersioned": false,
+        "success": true
+      },
+      {
+        "recipientCount": 17,
+        "withAtaCreation": false,
+        "instructionCount": 18,
+        "payloadSize": 1124,
+        "isVersioned": false,
+        "success": true
+      },
+      {
+        "recipientCount": 18,
+        "withAtaCreation": false,
+        "instructionCount": 19,
+        "payloadSize": 1173,
+        "isVersioned": false,
+        "success": true
+      },
+      {
+        "recipientCount": 19,
+        "withAtaCreation": false,
+        "instructionCount": 20,
+        "payloadSize": 1222,
+        "isVersioned": false,
+        "success": true
+      },
+      {
+        "recipientCount": 20,
+        "withAtaCreation": false,
+        "instructionCount": 21,
+        "payloadSize": 1206,
+        "isVersioned": false,
+        "success": false,
+        "error": "Transaction too large: 1271 > 1232",
+        "errorStack": "Error: Transaction too large: 1271 > 1232\n    at invariant (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/utils/assert.ts:6:11)\n    at _serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:860:5)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:832:17)\n    at Transaction.toBroadcastFormat (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transaction.ts:275:33)\n    at testTransactionSize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:87:29)\n    at async runBenchmark (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:190:20)"
+      },
+      {
+        "recipientCount": 30,
+        "withAtaCreation": false,
+        "instructionCount": 31,
+        "payloadSize": 1696,
+        "isVersioned": false,
+        "success": false,
+        "error": "Transaction too large: 1761 > 1232",
+        "errorStack": "Error: Transaction too large: 1761 > 1232\n    at invariant (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/utils/assert.ts:6:11)\n    at _serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:860:5)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:832:17)\n    at Transaction.toBroadcastFormat (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transaction.ts:275:33)\n    at testTransactionSize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:87:29)\n    at async runBenchmark (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:190:20)"
+      },
+      {
+        "recipientCount": 35,
+        "withAtaCreation": false,
+        "instructionCount": 36,
+        "payloadSize": 1941,
+        "isVersioned": false,
+        "success": false,
+        "error": "Transaction too large: 2006 > 1232",
+        "errorStack": "Error: Transaction too large: 2006 > 1232\n    at invariant (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/utils/assert.ts:6:11)\n    at _serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:860:5)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:832:17)\n    at Transaction.toBroadcastFormat (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transaction.ts:275:33)\n    at testTransactionSize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:87:29)\n    at async runBenchmark (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:190:20)"
+      },
+      {
+        "recipientCount": 38,
+        "withAtaCreation": false,
+        "instructionCount": 39,
+        "payloadSize": 2048,
+        "isVersioned": false,
+        "success": false,
+        "error": "Transaction too large: 2113 > 1232",
+        "errorStack": "Error: Transaction too large: 2113 > 1232\n    at invariant (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/utils/assert.ts:6:11)\n    at _serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:860:5)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:832:17)\n    at Transaction.toBroadcastFormat (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transaction.ts:275:33)\n    at testTransactionSize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:87:29)\n    at async runBenchmark (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:190:20)"
+      },
+      {
+        "recipientCount": 39,
+        "withAtaCreation": false,
+        "instructionCount": 40,
+        "payloadSize": 2048,
+        "isVersioned": false,
+        "success": false,
+        "error": "Transaction too large: 2113 > 1232",
+        "errorStack": "Error: Transaction too large: 2113 > 1232\n    at invariant (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/utils/assert.ts:6:11)\n    at _serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:860:5)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:832:17)\n    at Transaction.toBroadcastFormat (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transaction.ts:275:33)\n    at testTransactionSize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:87:29)\n    at async runBenchmark (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:190:20)"
+      },
+      {
+        "recipientCount": 40,
+        "withAtaCreation": false,
+        "instructionCount": 41,
+        "payloadSize": 2048,
+        "isVersioned": false,
+        "success": false,
+        "error": "Transaction too large: 2113 > 1232",
+        "errorStack": "Error: Transaction too large: 2113 > 1232\n    at invariant (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/utils/assert.ts:6:11)\n    at _serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:860:5)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:832:17)\n    at Transaction.toBroadcastFormat (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transaction.ts:275:33)\n    at testTransactionSize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:87:29)\n    at async runBenchmark (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:190:20)"
+      },
+      {
+        "recipientCount": 41,
+        "withAtaCreation": false,
+        "instructionCount": 42,
+        "payloadSize": 2048,
+        "isVersioned": false,
+        "success": false,
+        "error": "Transaction too large: 2113 > 1232",
+        "errorStack": "Error: Transaction too large: 2113 > 1232\n    at invariant (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/utils/assert.ts:6:11)\n    at _serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:860:5)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:832:17)\n    at Transaction.toBroadcastFormat (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transaction.ts:275:33)\n    at testTransactionSize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:87:29)\n    at async runBenchmark (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:190:20)"
+      },
+      {
+        "recipientCount": 42,
+        "withAtaCreation": false,
+        "instructionCount": 43,
+        "payloadSize": 2048,
+        "isVersioned": false,
+        "success": false,
+        "error": "Transaction too large: 2113 > 1232",
+        "errorStack": "Error: Transaction too large: 2113 > 1232\n    at invariant (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/utils/assert.ts:6:11)\n    at _serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:860:5)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:832:17)\n    at Transaction.toBroadcastFormat (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transaction.ts:275:33)\n    at testTransactionSize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:87:29)\n    at async runBenchmark (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:190:20)"
+      },
+      {
+        "recipientCount": 45,
+        "withAtaCreation": false,
+        "instructionCount": 46,
+        "payloadSize": 2048,
+        "isVersioned": false,
+        "success": false,
+        "error": "Transaction too large: 2113 > 1232",
+        "errorStack": "Error: Transaction too large: 2113 > 1232\n    at invariant (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/utils/assert.ts:6:11)\n    at _serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:860:5)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:832:17)\n    at Transaction.toBroadcastFormat (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transaction.ts:275:33)\n    at testTransactionSize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:87:29)\n    at async runBenchmark (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:190:20)"
+      },
+      {
+        "recipientCount": 50,
+        "withAtaCreation": false,
+        "instructionCount": 51,
+        "payloadSize": 2048,
+        "isVersioned": false,
+        "success": false,
+        "error": "Transaction too large: 2113 > 1232",
+        "errorStack": "Error: Transaction too large: 2113 > 1232\n    at invariant (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/utils/assert.ts:6:11)\n    at _serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:860:5)\n    at serialize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/node_modules/@solana/web3.js/src/transaction/legacy.ts:832:17)\n    at Transaction.toBroadcastFormat (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/src/lib/transaction.ts:275:33)\n    at testTransactionSize (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:87:29)\n    at async runBenchmark (/Users/rakeshreddy/Documents/BitGo/BitGoJS/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts:190:20)"
+      }
+    ]
+  }
+}
diff --git a/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts b/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts
index c042ae045f..11cfaac30a 100644
--- a/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts
+++ b/modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts
@@ -1,26 +1,32 @@
 /**
  * Transaction Size Benchmark Script
  *
- * This script empirically tests Solana transaction size limits by building
- * transactions with varying numbers of recipients and measuring the serialized
- * payload size. This helps determine safe, conservative limits for production use.
- *
- * Solana Legacy Transaction Constraints:
- * - Maximum transaction size: 1232 bytes
- * - Each instruction includes program ID, accounts, and instruction data
- * - Account metadata and signatures add to the total size
+ * Empirically determines Solana transaction size limits by testing various recipient counts.
+ * All test data is generated programmatically to ensure validity.
  *
  * Run: npx tsx modules/sdk-coin-sol/scripts/transaction-size-benchmark.ts
  */
 
-import { TransactionBuilderFactory, KeyPair } from '../src';
+import { TransactionBuilderFactory, KeyPair, Transaction } from '../src';
+import { SOLANA_TRANSACTION_MAX_SIZE } from '../src/lib/constants';
 import { coins } from '@bitgo/statics';
+import * as crypto from 'crypto';
+import bs58 from 'bs58';
+
+function generateBlockhash(): string {
+  return bs58.encode(crypto.randomBytes(32));
+}
 
-const SOLANA_LEGACY_TX_SIZE_LIMIT = 1232;
-const TEST_BLOCKHASH = 'GHtXQBsoZHVnNFa9YevAzFr17DJjgHXk3ycTKD5xD3Zi';
-const TEST_PRIVATE_KEY = '5jtsd9SmUH5mFZL7ywNNmqmxxdXw4FQ5GJQprXmrdX4LCuUwMBivCfUX2ar8hGdnLHDGrVKkshW1Ke21vZhPiLyr';
-const TEST_TOKEN = 'tsol:usdt';
-const TEST_AMOUNT = '1000000000';
+function generateTestConfig() {
+  const authAccount = new KeyPair();
+  return {
+    blockhash: generateBlockhash(),
+    authAccount,
+    sender: authAccount.getKeys().pub,
+    token: 'tsol:usdt',
+    amount: '1000000000',
+  };
+}
 
 interface BenchmarkResult {
   recipientCount: number;
@@ -33,110 +39,77 @@ interface BenchmarkResult {
   errorStack?: string;
 }
 
-/**
- * Generates an array of unique test recipient addresses
- */
 function generateRecipients(count: number): string[] {
-  const baseAddresses = [
-    'GYFtQoFCRvGS3WgJe32nRi8LarbSH81rp32SeTmd8mqT',
-    '9AKiRaA3NusuW9WcFz5NQ7K1vqf9FMLtb1hFXqc7imkx',
-    'FiLHbfatU4keyGzZ1KjC57L3iYmVUi2azJ1ozSZsZWD6',
-    '6XKXKPfk5bHmHV4eL2ZFZ5ubcMu6YLed86niBfx7P4Pg',
-    'CfhjtJ7W1HHmwXPo9HAkG25gDJPav64iN9Z3nx8eCWV8',
-    'DNNSTu2fkj45u6oQuH1fBc3tyDjnnbvhAESrZGhH3uxa',
-    'EHPBg7n93e1TWW7oXDwpivQTjZmpavzN9T6HEqAN4bz1',
-    'EUZfVoaJgApESLe3Bx8d7xyqg1pucgeydBLQPiRhi6nE',
-    'EqE7fJ89HZTAE8MxmJtxCqLhW1ozfhaqZigM5cYxRdHx',
-    'CDFk1LXXbWqkd8q9cEsnc3nX44uKgrkDb48b9keBrt8H',
-    'EFDfayERUomCbAKurccrAbEYmkyZ1ytazgkiBMBGM851',
-    'EPPE9i37rnwWFzagoEHQtBM644p52q54UUGqemJPkAQu',
-    '3UKwF59ZmRPXq8ooQDjMmzYUiH861KwhJPzjcYfPXDTG',
-    'Cr2yAAa7zEkSLJGebkscXQKNTpmgg5ECC4tCkZHHpNvG',
-    '8wQ2VzVEtYDzKaJ5XqGskkQAJZT5YJwHiUTPa7juCF4w',
-    '3URWW579b4ugLecHca69feGTM7LKPZ3jDrdTegosVE24',
-    '3pL2GxpS8QJoNXhXicnEQ2nvXxFbSy7CoJCRxiWtAuQs',
-    'Cei1xdDuZmQxU6FNAcrrmM7aR7amF72osySgS8afpv5m',
-    '5Dd1qGYbbdudLi6uCdDodZw1CJ15j2zWnb7ZxQ68em5a',
-    '4fviuPUgg3uJp7J2eqLCmeuiHh6zUbn8iXm6JcECNH7T',
-    '4g9w2CsTR5h6urpuvm5R5w7UGPKUuCmrSSbj5BWAygq2',
-    '3PRwJ1PjrwF7rBCSsNjAH2s8Pr2XdbSm9koGcVLmrnaz',
-    '3p9ViY8efykqjixyZGVY2hPLVpHcfsUDKrrHqCUWyYPb',
-    '3oANXoBY6b5qgwRf1yES6kx1hf7rDGbEWkopcmXxau1u',
-    '3NqKx8uf3V1bTBtkniMzxVsuqW7SZmTnhJpRFuV6aAFz',
-    '3NVNrcyJjZmH7xytX2ayPZRucS1YBywwZ5DMzjGRtJvu',
-    '4iLLJqwHSdZPBbDPFpG8XiDazX8jMEam8fPQWwrG3qGP',
-    '3wbfKiB6uZuZ3KhjVcU9qc5M4yaWyx6mAUJA56tCD1vJ',
-    '4QheUEWRi8nesT94mRxiizZnAtRQTnk45jb4oaKMoo1f',
-    '4PowojicaKCxgupfPCZK5DT7QB1U3N7xh8Wq7N7VoCvw',
-    'F3rTU6cFx9Aqa9jmuq5rSZN7p8bu1pmU9EbNBPeKHz7t',
-    '6XREPthmB7mTwLTHv54DZM14rgAuMa1NgXsmPeFgrqwu',
-    '5LTQgjYbbBsZj3V5rPmkcAkPcJcbCT8PQTskz2rWL3kW',
-    '7aG7LiNQ4hMNWwXTZRrpYVpPZDxY1Ea9YcbHuEjXXKVT',
-    'DNyKPeaGfoPYzPmNG4osMZJdyJBZbeMUfNKAAt5RSw23',
-    'DpFPcPk454MhoGv71DoaoHSJ5qWnKcVAo9euVoPWPprZ',
-    'E4T6wq3aF4LivPfgr5sBKFUJLTZz7sND8duJDYK2EbXG',
-    'EeM3aXzgt3Qf7tNV4RBe4vg83gtyGZqUQrJumzwtTUvN',
-    'EqBF851o6HknqDy5Ji8PCtyxo48ACjBVPhC1NSpAKbEx',
-    'EQVV74ZC332uKpZXrCVU7xzqTBBTdom3DERsEnRNqmAF',
-    'EvnEyrSG5qSnxsCSqxdhbbKrcg2oiikKiTtYhwbAMnKT',
-    'EBxE1QUeYuKsCCYuDsf6ngUV4ApmGUdc913b1oCLCwus',
-    '5GjFQdcCpB9Wj9CJFbMfKTfB7X9h6FSdqrxG6HaJAmUF',
-    'EY1wKHGmTUK89aKjZ8qmycyx5gQjBDgeWPfKcwQf2Hvd',
-    'EzLYbB2JcSPf9FwiWonD2XfEd3S89ghuMUH27UPvQzgJ',
-    '2n2xqWM9Z18LqxfJzkNrMMFWiDUFYA2k6WSgSnf6EnJs',
-    'DesU7XscZjng8yj5VX6AZsk3hWSW4sQ3rTG2LuyQ2P4H',
-    'Azz9EmNuhtjoYrhWvidWx1Hfd14SNBsYyzXhA9Tnoca8',
-    '5ne7phA48Jrvpn39AtupB8ZkCCAy8gLTfpGihZPuDqen',
-  ];
-
-  return baseAddresses.slice(0, Math.min(count, baseAddresses.length));
+  const recipients: string[] = [];
+  for (let i = 0; i < count; i++) {
+    recipients.push(new KeyPair().getAddress());
+  }
+  return recipients;
 }
 
-/**
- * Tests building a transaction with a specific number of recipients
- */
 async function testTransactionSize(recipientCount: number, withAtaCreation: boolean): Promise<BenchmarkResult> {
   const coinConfig = coins.get('tsol');
   const factory = new TransactionBuilderFactory(coinConfig);
-  const authAccount = new KeyPair({ prv: TEST_PRIVATE_KEY });
-  const sender = authAccount.getKeys().pub;
+  const testConfig = generateTestConfig();
   const recipients = generateRecipients(recipientCount);
 
   try {
     const txBuilder = factory.getTokenTransferBuilder();
-    txBuilder.nonce(TEST_BLOCKHASH);
-    txBuilder.sender(sender);
+    txBuilder.nonce(testConfig.blockhash);
+    txBuilder.sender(testConfig.sender);
 
     for (const recipientAddress of recipients) {
       txBuilder.send({
         address: recipientAddress,
-        amount: TEST_AMOUNT,
-        tokenName: TEST_TOKEN,
+        amount: testConfig.amount,
+        tokenName: testConfig.token,
       });
 
       if (withAtaCreation) {
         txBuilder.createAssociatedTokenAccount({
           ownerAddress: recipientAddress,
-          tokenName: TEST_TOKEN,
+          tokenName: testConfig.token,
         });
       }
     }
 
     txBuilder.memo('Benchmark test transaction');
-    txBuilder.sign({ key: authAccount.getKeys().prv });
+    txBuilder.sign({ key: testConfig.authAccount.getKeys().prv });
 
-    const tx = await txBuilder.build();
-    const payload = tx.signablePayload;
+    const tx = (await txBuilder.build()) as Transaction;
     const instructionCount = tx.toJson().instructionsData?.length || 0;
     const isVersioned = tx.isVersionedTransaction();
 
+    let payloadSize = 0;
+    let serializationError: { message: string; stack?: string } | undefined;
+
+    try {
+      const serialized = tx.toBroadcastFormat();
+      payloadSize = Buffer.from(serialized, 'base64').length;
+    } catch (error) {
+      const errorMessage = error instanceof Error ? error.message : String(error);
+      const errorStack = error instanceof Error ? error.stack : undefined;
+      serializationError = { message: errorMessage, stack: errorStack };
+
+      try {
+        const payload = tx.signablePayload;
+        payloadSize = payload.length;
+      } catch {
+        payloadSize = 0;
+      }
+    }
+
+    const isWithinLimit = !isVersioned && payloadSize <= SOLANA_TRANSACTION_MAX_SIZE && !serializationError;
+
     return {
       recipientCount,
       withAtaCreation,
       instructionCount,
-      payloadSize: payload.length,
+      payloadSize,
       isVersioned,
-      success: true,
+      success: isWithinLimit,
+      error: serializationError?.message,
+      errorStack: serializationError?.stack,
     };
   } catch (error) {
     const errorMessage = error instanceof Error ? error.message : String(error);
@@ -155,9 +128,6 @@ async function testTransactionSize(recipientCount: number, withAtaCreation: bool
   }
 }
 
-/**
- * Performs binary search to find the maximum safe recipient count for LEGACY transactions
- */
 async function findMaxRecipients(withAtaCreation: boolean): Promise<number> {
   let left = 1;
   let right = 50;
@@ -167,8 +137,7 @@ async function findMaxRecipients(withAtaCreation: boolean): Promise<number> {
     const mid = Math.floor((left + right) / 2);
     const result = await testTransactionSize(mid, withAtaCreation);
 
-    // Only consider legacy transactions within the size limit as safe
-    if (result.success && !result.isVersioned && result.payloadSize <= SOLANA_LEGACY_TX_SIZE_LIMIT) {
+    if (result.success && !result.isVersioned && result.payloadSize <= SOLANA_TRANSACTION_MAX_SIZE) {
       maxSafe = mid;
       left = mid + 1;
     } else {
@@ -179,39 +148,31 @@ async function findMaxRecipients(withAtaCreation: boolean): Promise<number> {
   return maxSafe;
 }
 
-/**
- * Main benchmark execution
- */
 async function runBenchmark(): Promise<void> {
   console.log('Solana Transaction Size Benchmark');
-  console.log('Limit: 1232 bytes for legacy transactions\n');
+  console.log(`Limit: ${SOLANA_TRANSACTION_MAX_SIZE} bytes for legacy transactions\n`);
 
-  // Test WITH ATA creation
   console.log('[1/2] Testing WITH ATA Creation:');
   const withAtaResults: BenchmarkResult[] = [];
-  const testCountsWithAta = [1, 5, 10, 12, 13, 14, 15, 16, 17, 18, 20, 25, 30];
+  const testCountsWithAta = [1, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 20, 25, 30];
 
   for (const count of testCountsWithAta) {
     const result = await testTransactionSize(count, true);
     withAtaResults.push(result);
 
-    if (result.success && result.payloadSize <= SOLANA_LEGACY_TX_SIZE_LIMIT) {
+    if (result.success) {
       const txType = result.isVersioned ? 'versioned' : 'legacy';
       console.log(
         `  ${count} recipients: ${result.payloadSize} bytes, ${result.instructionCount} instructions (${txType})`
       );
     } else {
       console.log(`  ${count} recipients: FAILED`);
-      if (result.success && result.payloadSize > SOLANA_LEGACY_TX_SIZE_LIMIT) {
-        console.log(
-          `    Error: Transaction size ${result.payloadSize} bytes exceeds ${SOLANA_LEGACY_TX_SIZE_LIMIT} byte limit`
-        );
-      } else {
+      if (result.error) {
         console.log(`    Error: ${result.error}`);
-        if (result.errorStack) {
-          const stackLines = result.errorStack.split('\n').slice(0, 4);
-          console.log(`    Stack: ${stackLines.join('\n           ')}`);
-        }
+      }
+      if (result.errorStack) {
+        const stackLines = result.errorStack.split('\n').slice(0, 4);
+        console.log(`    Stack: ${stackLines.join('\n           ')}`);
       }
     }
   }
@@ -221,32 +182,27 @@ async function runBenchmark(): Promise<void> {
   console.log(`\n  Maximum: ${maxWithAta} recipients`);
   console.log(`  Conservative (10% buffer): ${conservativeWithAta} recipients\n`);
 
-  // Test WITHOUT ATA creation
   console.log('[2/2] Testing WITHOUT ATA Creation:');
   const withoutAtaResults: BenchmarkResult[] = [];
-  const testCountsWithoutAta = [1, 10, 20, 30, 35, 38, 39, 40, 41, 42, 45, 50];
+  const testCountsWithoutAta = [1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 30, 35, 38, 39, 40, 41, 42, 45, 50];
 
   for (const count of testCountsWithoutAta) {
     const result = await testTransactionSize(count, false);
     withoutAtaResults.push(result);
 
-    if (result.success && result.payloadSize <= SOLANA_LEGACY_TX_SIZE_LIMIT) {
+    if (result.success) {
       const txType = result.isVersioned ? 'versioned' : 'legacy';
       console.log(
         `  ${count} recipients: ${result.payloadSize} bytes, ${result.instructionCount} instructions (${txType})`
       );
     } else {
       console.log(`  ${count} recipients: FAILED`);
-      if (result.success && result.payloadSize > SOLANA_LEGACY_TX_SIZE_LIMIT) {
-        console.log(
-          `    Error: Transaction size ${result.payloadSize} bytes exceeds ${SOLANA_LEGACY_TX_SIZE_LIMIT} byte limit`
-        );
-      } else {
+      if (result.error) {
         console.log(`    Error: ${result.error}`);
-        if (result.errorStack) {
-          const stackLines = result.errorStack.split('\n').slice(0, 4);
-          console.log(`    Stack: ${stackLines.join('\n           ')}`);
-        }
+      }
+      if (result.errorStack) {
+        const stackLines = result.errorStack.split('\n').slice(0, 4);
+        console.log(`    Stack: ${stackLines.join('\n           ')}`);
       }
     }
   }
@@ -256,16 +212,14 @@ async function runBenchmark(): Promise<void> {
   console.log(`\n  Maximum: ${maxWithoutAta} recipients`);
   console.log(`  Conservative (10% buffer): ${conservativeWithoutAta} recipients\n`);
 
-  // Summary
   console.log('RECOMMENDED LIMITS (for legacy transactions):');
   console.log(`  With ATA creation: ${conservativeWithAta} recipients`);
   console.log(`  Without ATA creation: ${conservativeWithoutAta} recipients`);
   console.log('\nNote: Transactions exceeding limits may build as versioned transactions automatically.');
 
-  // Export results
   const exportData = {
     timestamp: new Date().toISOString(),
-    solanaLegacyTxSizeLimit: SOLANA_LEGACY_TX_SIZE_LIMIT,
+    solanaLegacyTxSizeLimit: SOLANA_TRANSACTION_MAX_SIZE,
     withAtaCreation: {
       maxSafe: maxWithAta,
       conservative: conservativeWithAta,
@@ -279,11 +233,12 @@ async function runBenchmark(): Promise<void> {
   };
 
   const fs = await import('fs');
-  fs.writeFileSync('transaction-size-benchmark-results.json', JSON.stringify(exportData, null, 2));
-  console.log('\nResults saved to: transaction-size-benchmark-results.json');
+  const path = await import('path');
+  const outputPath = path.join(__dirname, 'transaction-size-benchmark-results.json');
+  fs.writeFileSync(outputPath, JSON.stringify(exportData, null, 2));
+  console.log(`\nResults saved to: ${outputPath}`);
 }
 
-// Execute benchmark
 runBenchmark()
   .then(() => {
     console.log('Benchmark completed successfully');
diff --git a/modules/sdk-coin-sol/src/lib/constants.ts b/modules/sdk-coin-sol/src/lib/constants.ts
index f71b3956f9..33026c874e 100644
--- a/modules/sdk-coin-sol/src/lib/constants.ts
+++ b/modules/sdk-coin-sol/src/lib/constants.ts
@@ -9,6 +9,25 @@ export const STAKE_ACCOUNT_RENT_EXEMPT_AMOUNT = 2282880;
 
 export const UNAVAILABLE_TEXT = 'UNAVAILABLE';
 
+/**
+ * Maximum over-the-wire size of a Solana transaction (in bytes)
+ *
+ * Source: https://github.com/anza-xyz/agave/blob/v2.1.13/sdk/packet/src/lib.rs#L27-L29
+ *
+ * Calculation:
+ * - IPv6 minimum MTU: 1280 bytes
+ * - IPv6 header: 40 bytes
+ * - Fragment/UDP header: 8 bytes
+ * - Result: 1280 - 40 - 8 = 1232 bytes
+ *
+ * This limit is designed to avoid packet fragmentation on typical internet infrastructure.
+ * Transactions exceeding this limit will fail to serialize with a RangeError during
+ * the encoding of the transaction message.
+ *
+ * Reference: https://solana.com/docs/core/transactions#transaction-size
+ */
+export const SOLANA_TRANSACTION_MAX_SIZE = 1232;
+
 export const JITO_STAKE_POOL_ADDRESS = 'Jito4APyf642JPZPx3hGc6WWJ8zPKtRbRs4P815Awbb';
 export const JITOSOL_MINT_ADDRESS = 'J1toso1uCk3RLmjorhTtrVwY9HJ7X8V9yYac6Y7kGCPn';
 export const JITO_STAKE_POOL_RESERVE_ACCOUNT = 'BgKUXdS29YcHCFrPm5M8oLHiTzZaMDjsebggjoaQ6KFL';