diff --git a/SimG4CMS/Calo/plugins/HGCalMouseBiteTester.cc b/SimG4CMS/Calo/plugins/HGCalMouseBiteTester.cc
index e0747d5aa415b..bf5af621e5a36 100644
--- a/SimG4CMS/Calo/plugins/HGCalMouseBiteTester.cc
+++ b/SimG4CMS/Calo/plugins/HGCalMouseBiteTester.cc
@@ -111,11 +111,11 @@ void HGCalMouseBiteTester::analyze(const edm::Event& iEvent, const edm::EventSet
   int orient = HGCalWaferType::getOrient(index, hgcons_.getParameter()->waferInfoMap_);
   int placeIndex_ = HGCalCell::cellPlacementIndex(zside, frontBack, orient);
   int waferType_ = HGCalWaferType::getType(index, hgcons_.getParameter()->waferInfoMap_);
-  double mouseBiteCut_ = waferSize_ * tan(30.0 * CLHEP::deg) - 5.0;
+  double mouseBiteCut_ = hgcons_.mouseBite(false);
   bool v17OrLess = hgcons_.v17OrLess();
   HGCGuardRing guardRing_(hgcons_);
   HGCGuardRingPartial guardRingPartial_(hgcons_);
-  HGCMouseBite mouseBite_(hgcons_, angle_, mouseBiteCut_, true);
+  HGCMouseBite mouseBite_(hgcons_, angle_, (waferSize_ * tan(30.0 * CLHEP::deg) - mouseBiteCut_), true);
   const int nFine(12), nCoarse(8);
   double r2 = 0.5 * waferSize_;
   double R2 = 2 * r2 / sqrt(3);
diff --git a/SimG4CMS/Calo/src/HGCGuardRing.cc b/SimG4CMS/Calo/src/HGCGuardRing.cc
index 977bf0e044428..7756fea428797 100644
--- a/SimG4CMS/Calo/src/HGCGuardRing.cc
+++ b/SimG4CMS/Calo/src/HGCGuardRing.cc
@@ -11,10 +11,10 @@ HGCGuardRing::HGCGuardRing(const HGCalDDDConstants& hgc)
       modeUV_(hgcons_.geomMode()),
       v17OrLess_(hgcons_.v17OrLess()),
       waferSize_(hgcons_.waferSize(false)),
-      sensorSizeOffset_(hgcons_.getParameter()->sensorSizeOffset_),
-      guardRingOffset_(hgcons_.getParameter()->guardRingOffset_) {
-  offset_ = sensorSizeOffset_ + 2.0 * guardRingOffset_;
-  xmax_ = 0.5 * (waferSize_ - offset_);
+      sensorSizeOffset_(hgcons_.sensorSizeOffset(false)),
+      guardRingOffset_(hgcons_.guardRingOffset(false)) {
+  offset_ = sensorSizeOffset_ + guardRingOffset_;
+  xmax_ = 0.5 * waferSize_ - offset_;
   ymax_ = xmax_ / sqrt3_;
 #ifdef EDM_ML_DEBUG
   edm::LogVerbatim("HGCSim") << "Creating HGCGuardRing with wafer size " << waferSize_ << ", Offsets "
diff --git a/SimG4CMS/Calo/src/HGCGuardRingPartial.cc b/SimG4CMS/Calo/src/HGCGuardRingPartial.cc
index fea159c7001a5..8daaec5df9a02 100644
--- a/SimG4CMS/Calo/src/HGCGuardRingPartial.cc
+++ b/SimG4CMS/Calo/src/HGCGuardRingPartial.cc
@@ -13,7 +13,7 @@ HGCGuardRingPartial::HGCGuardRingPartial(const HGCalDDDConstants& hgc)
       modeUV_(hgcons_.geomMode()),
       v17OrLess_(hgcons_.v17OrLess()),
       waferSize_(hgcons_.waferSize(false)),
-      guardRingOffset_(hgcons_.getParameter()->guardRingOffset_) {
+      guardRingOffset_(hgcons_.guardRingOffset(false)) {
   offset_ = guardRingOffset_;
   c22_ = (v17OrLess_) ? HGCalTypes::c22O : HGCalTypes::c22;
   c27_ = (v17OrLess_) ? HGCalTypes::c27O : HGCalTypes::c27;