diff --git a/JobConfig/cosmic/NoField.fcl b/JobConfig/cosmic/NoField.fcl
index 77597ba8..006f3f7e 100644
--- a/JobConfig/cosmic/NoField.fcl
+++ b/JobConfig/cosmic/NoField.fcl
@@ -44,6 +44,13 @@ physics.producers.g4run.Mu2eG4CommonCut: @local::Cosmic.Mu2eG4CommonCutCosmicNoF
 physics.producers.FindMCPrimary.PrimaryGenIds: ["CosmicCRY", "CosmicCORSIKA"]
 # since these data aren't resampled we have to apply the cosmic time offset here
 physics.producers.cosmicTimeOffset.cosmicModuleLabel : "generate"
+
+#
+# final configuration
+#
+#include "Production/JobConfig/common/epilog.fcl"
+#include "Production/JobConfig/primary/epilog.fcl"
+#
 # need to offset the GenParticles
 
 physics.end_paths : [ EndPath ]
diff --git a/Scripts/POMS/samDatasetsSummary.sh b/Scripts/POMS/samDatasetsSummary.sh
index 715c502f..7da04b2b 100755
--- a/Scripts/POMS/samDatasetsSummary.sh
+++ b/Scripts/POMS/samDatasetsSummary.sh
@@ -1,12 +1,19 @@
 #!/bin/bash
 # usage
 if [[ -z "$1" ]]; then
-  echo "Usage: $0 <dataset>" >&2
+  echo "Usage: $0 <dataset> [--sample-files N]" >&2
+  echo "  --sample-files N: Number of files to sample for generated events calculation (default: 10)" >&2
   exit 1
 fi
 
 # Get the dataset name
 dataset="$1"
+
+# Parse command line arguments
+sample_files=10
+if [[ "$2" == "--sample-files" && -n "$3" ]]; then
+  sample_files="$3"
+fi
 # Obtain summary once
 summary_txt=$(samweb list-definition-files --summary "$dataset" 2>/dev/null)
 nfiles=$(echo "$summary_txt" | awk '/File count:/ {print $3}')
@@ -24,9 +31,21 @@ if (( nfiles == 0 )); then
     exit 1
 fi
 
-# Calculate total generated events from all files
-generated=$(samweb list-definition-files "$dataset" 2>/dev/null | \
-  xargs -n1 samweb get-metadata | awk '/dh.gencount/ { sum += $2 } END { print sum+0 }')
+# Calculate total generated events by extrapolating from sampled files
+# OPTIMIZATION: Use SAM's metadata query to get dh.gencount directly
+sample_sum=$(samweb list-definition-files "$dataset" 2>/dev/null | \
+  head -"$sample_files" | while read file; do
+    samweb get-metadata "$file" 2>/dev/null | awk '/dh.gencount/ {print $2}'
+  done | awk '{sum += $1} END {print sum+0}')
+
+# Extrapolate to total number of files
+if (( sample_sum > 0 && sample_files > 0 )); then
+  avg_per_file=$((sample_sum / sample_files))
+  generated=$((avg_per_file * nfiles))
+  echo "Debug: Sampled $sample_files files for dh.gencount, sum=$sample_sum, avg=$avg_per_file, extrapolated=$generated" >&2
+else
+  generated=0
+fi
 
 printf "Triggered: %s\nGenerated: %s\nFiles: %s\nSize: %s\n" "$triggered" "$generated" "$nfiles" "$size"