diff --git a/fcl/caf/cafmaker_add_detsim2d_icarus.fcl b/fcl/caf/cafmaker_add_detsim2d_icarus.fcl
index 0c06987de..47e5fd3ed 100644
--- a/fcl/caf/cafmaker_add_detsim2d_icarus.fcl
+++ b/fcl/caf/cafmaker_add_detsim2d_icarus.fcl
@@ -14,5 +14,5 @@ physics.producers.mcreco.SimChannelLabel: "daq:simpleSC"
 # this_cal_constants: [1.343e-2, 1.338e-2, 0.01227]
 # Post signal shape tuning, post gain fixing
 # See docdb 32139
-this_cal_constants: [1.343e-2, 1.338e-2, 0.01265]
+this_cal_constants: [1.343e-2, 1.338e-2, 0.0128041]
 #include "set_caf_calconst.fcl"
diff --git a/fcl/numi-anaA/detsim_2d_icarus_fitFR_P0nom.fcl b/fcl/numi-anaA/detsim_2d_icarus_fitFR_P0nom.fcl
new file mode 100644
index 000000000..23bdd23e0
--- /dev/null
+++ b/fcl/numi-anaA/detsim_2d_icarus_fitFR_P0nom.fcl
@@ -0,0 +1,3 @@
+#include "detsim_2d_icarus.fcl"
+
+physics.producers.daq: @local::icarus_simwire_wirecell_fitSR_P0nom
diff --git a/fcl/numi-anaA/detsim_2d_icarus_fitFR_P0nom_gain0-8x.fcl b/fcl/numi-anaA/detsim_2d_icarus_fitFR_P0nom_gain0-8x.fcl
new file mode 100644
index 000000000..7faaf7b48
--- /dev/null
+++ b/fcl/numi-anaA/detsim_2d_icarus_fitFR_P0nom_gain0-8x.fcl
@@ -0,0 +1,5 @@
+#include "detsim_2d_icarus.fcl"
+
+physics.producers.daq: @local::icarus_simwire_wirecell_fitSR_P0nom
+
+physics.producers.daq.wcls_main.structs.gain0: 13.641696
diff --git a/fcl/numi-anaA/detsim_2d_icarus_fitFR_noise1-1x.fcl b/fcl/numi-anaA/detsim_2d_icarus_fitFR_noise1-1x.fcl
new file mode 100644
index 000000000..266577e83
--- /dev/null
+++ b/fcl/numi-anaA/detsim_2d_icarus_fitFR_noise1-1x.fcl
@@ -0,0 +1,11 @@
+# Fit field responses, same gains as used in the MCNuPhase2 2023A monte carlo
+#
+#include "detsim_2d_icarus.fcl"
+
+
+physics.producers.daq: @local::icarus_simwire_wirecell_fitSR
+
+physics.producers.daq.wcls_main.structs.gain0: 10.2636323
+physics.producers.daq.wcls_main.structs.gain1: 12.1420344
+
+physics.producers.daq.wcls_main.structs.int_noise_scale: 1.10
diff --git a/icaruscode/TPC/Calorimetry/calorimetryICARUS.fcl b/icaruscode/TPC/Calorimetry/calorimetryICARUS.fcl
index f59db9a83..8b9a818a8 100644
--- a/icaruscode/TPC/Calorimetry/calorimetryICARUS.fcl
+++ b/icaruscode/TPC/Calorimetry/calorimetryICARUS.fcl
@@ -13,9 +13,9 @@ icarus_calorimetryalgmc.CalAreaConstants: [0.01343, 0.01338, 0.01219]
 
 icarus_calorimetryalgdata.CalAreaConstants: @local::icarus_data_calconst
 icarus_calorimetryalgdata.CaloDoLifeTimeCorrection: false # handled by NormTools
-icarus_calorimetryalgdata.ModBoxA: 0.906
+icarus_calorimetryalgdata.ModBoxA: 0.903
 icarus_calorimetryalgdata.ModBoxBTF1: "[0]/TMath::Sqrt(TMath::Sin(x*TMath::Pi()/180)**2 + TMath::Cos(x*TMath::Pi()/180)**2/[1]**2)"
-icarus_calorimetryalgdata.ModBoxBParam: [0.203, 1.25]
+icarus_calorimetryalgdata.ModBoxBParam: [0.205, 1.25]
 
 standard_gnocchicaloicarus:
 {
diff --git a/icaruscode/TPC/ICARUSWireCell/detsimmodules_wirecell_ICARUS.fcl b/icaruscode/TPC/ICARUSWireCell/detsimmodules_wirecell_ICARUS.fcl
index 3541a44ab..7126d6b0d 100644
--- a/icaruscode/TPC/ICARUSWireCell/detsimmodules_wirecell_ICARUS.fcl
+++ b/icaruscode/TPC/ICARUSWireCell/detsimmodules_wirecell_ICARUS.fcl
@@ -69,6 +69,7 @@ icarus_simwire_wirecell:
     }
 }
 
+# TUNED FR CONFIG
 icarus_simwire_wirecell_fitSR: @local::icarus_simwire_wirecell
 # Add in the ER tail
 icarus_simwire_wirecell_fitSR.wcls_main.params.file_rcresp: "icarus_fnal_rc_tail.json"
@@ -79,4 +80,16 @@ icarus_simwire_wirecell_fitSR.wcls_main.structs.gain0: 11.9918701 # mV/fC
 icarus_simwire_wirecell_fitSR.wcls_main.structs.gain1: 12.6181926 # mV/fC
 icarus_simwire_wirecell_fitSR.wcls_main.structs.gain2: 13.0261362 # mV/fC
 icarus_simwire_wirecell_fitSR.wcls_main.structs.shaping1: 1.45 # us
+
+# TUNED FR CONFIG w/ Front Induction Nominal
+icarus_simwire_wirecell_fitSR_P0nom: @local::icarus_simwire_wirecell
+# Add in the ER tail
+icarus_simwire_wirecell_fitSR_P0nom.wcls_main.params.file_rcresp: "icarus_fnal_rc_tail.json"
+# Add in the tuned field responses (except for P0)
+icarus_simwire_wirecell_fitSR_P0nom.wcls_main.params.files_fields: "icarus_fnal_fit_ks_P0nom.json.bz2"
+# futz with shaping+gain values (note these are really just scale factors and should not be taken literally)
+icarus_simwire_wirecell_fitSR_P0nom.wcls_main.structs.gain0: 17.05212 # mV/fC 
+icarus_simwire_wirecell_fitSR_P0nom.wcls_main.structs.gain1: 12.6181926 # mV/fC
+icarus_simwire_wirecell_fitSR_P0nom.wcls_main.structs.gain2: 13.0261362 # mV/fC
+icarus_simwire_wirecell_fitSR_P0nom.wcls_main.structs.shaping1: 1.45 # us
 END_PROLOG