diff --git a/Configuration/PyReleaseValidation/python/relval_steps.py b/Configuration/PyReleaseValidation/python/relval_steps.py
index 5dad1d85f40cf..539f03f72452d 100644
--- a/Configuration/PyReleaseValidation/python/relval_steps.py
+++ b/Configuration/PyReleaseValidation/python/relval_steps.py
@@ -1562,7 +1562,7 @@ def lhegensim2017(fragment,howMuch):
 
 steps['HYBRIDRepackHI2015VR']={'--eventcontent':'RAW',
                                '--datatier':'RAW',
-                               '--conditions':'auto:run2_data',
+                               '--conditions':'auto:run2_hlt_hi',
                                '--step':'RAW2DIGI,REPACK:DigiToHybridRawRepack',
                                '--scenario':'HeavyIons',                     
                                '--data':'',
diff --git a/RecoLocalTracker/SiStripZeroSuppression/python/customiseHybrid.py b/RecoLocalTracker/SiStripZeroSuppression/python/customiseHybrid.py
index f4416d6447efa..42efe243f56cc 100644
--- a/RecoLocalTracker/SiStripZeroSuppression/python/customiseHybrid.py
+++ b/RecoLocalTracker/SiStripZeroSuppression/python/customiseHybrid.py
@@ -4,6 +4,7 @@
 def runOnHybridZS(process):
     process.load("RecoLocalTracker.SiStripZeroSuppression.SiStripZeroSuppression_cfi")
     process.load("RecoLocalTracker.SiStripClusterizer.SiStripClusterizer_cfi")
+    process.siStripZeroSuppression.Algorithms.APVInspectMode = "Hybrid"
     zsInputs = process.siStripZeroSuppression.RawDigiProducersList
     clusInputs = process.siStripClusters.DigiProducersList
     unpackedZS = cms.InputTag("siStripDigis", "ZeroSuppressed")
@@ -33,7 +34,7 @@ def addHybridEmulationBeforeRepack(process):
     zs.Algorithms.APVInspectMode = "HybridEmulation"
     zs.Algorithms.APVRestoreMode = ""
     zs.Algorithms.CommonModeNoiseSubtractionMode = 'Median'
-    zs.Algorithms.MeanCM = 512
+    zs.Algorithms.MeanCM = 0
     zs.Algorithms.DeltaCMThreshold = 20
     zs.Algorithms.Use10bitsTruncation = True
     zs.RawDigiProducersList = cms.VInputTag(cms.InputTag("siStripDigis", "VirginRaw"))
diff --git a/RecoLocalTracker/SiStripZeroSuppression/src/SiStripAPVRestorer.cc b/RecoLocalTracker/SiStripZeroSuppression/src/SiStripAPVRestorer.cc
index 0443d3634b135..24716ef61bd7d 100644
--- a/RecoLocalTracker/SiStripZeroSuppression/src/SiStripAPVRestorer.cc
+++ b/RecoLocalTracker/SiStripZeroSuppression/src/SiStripAPVRestorer.cc
@@ -46,8 +46,8 @@ SiStripAPVRestorer::SiStripAPVRestorer(const edm::ParameterSet& conf):
   size_window_(conf.getParameter<int>("sizeWindow")),
   width_cluster_(conf.getParameter<int>("widthCluster"))
 {
-  if ( restoreAlgo_ == "BaselineFollower" && inspectAlgo_ != "BaselineFollower" )
-    throw cms::Exception("Incompatible Algorithm") << "The BaselineFollower restore method requires the BaselineFollower inspect method";
+  if ( restoreAlgo_ == "BaselineFollower" && inspectAlgo_ != "BaselineFollower" && inspectAlgo_ != "Hybrid" )
+    throw cms::Exception("Incompatible Algorithm") << "The BaselineFollower restore method requires the BaselineFollower (or Hybrid) inspect method";
 }
 
 
@@ -323,8 +323,8 @@ inline uint16_t SiStripAPVRestorer::hybridEmulationInspect(uint16_t firstAPV, co
       if ( useRealMeanCM_ && ( std::end(meanCMmap_) != itCMMap ) )
         MeanAPVCM = itCMMap->second[iAPV];
 
-      const float DeltaCM = median_[iAPV] - MeanAPVCM;
-      if ( ( DeltaCM < 0 ) && ( std::abs(DeltaCM) > deltaCMThreshold_ ) ) {
+      const float DeltaCM = median_[iAPV] - (MeanAPVCM+1024)/2;
+      if ( ( DeltaCM < 0 ) && ( std::abs(DeltaCM) > deltaCMThreshold_/2 ) ) {
         apvFlags_[iAPV] = "HybridEmulation";
         ++nAPVflagged;
       }