diff --git a/Alignment/OfflineValidation/macros/PlotAlignmentValidation.C b/Alignment/OfflineValidation/macros/PlotAlignmentValidation.C
index 06c6e78f234c5..401f45105dd52 100644
--- a/Alignment/OfflineValidation/macros/PlotAlignmentValidation.C
+++ b/Alignment/OfflineValidation/macros/PlotAlignmentValidation.C
@@ -503,7 +503,7 @@ void PlotAlignmentValidation::plotSS( const std::string& options, const std::str
 //------------------------------------------------------------------------------
 void PlotAlignmentValidation::plotDMR(const std::string& variable, Int_t minHits, const std::string& options)
 {
-  // If several, comma-separated values are given,
+  // If several, comma-separated values are given in 'variable',
   // call plotDMR with each value separately.
   // If a comma is found, the string is divided to two.
   // (no space allowed)
@@ -525,6 +525,14 @@ void PlotAlignmentValidation::plotDMR(const std::string& variable, Int_t minHits
     return;
   }
 
+  // options: 
+  // -plain (default, the whole distribution)
+  // -split (distribution splitted to two)
+  // -layers (plain db for each layer/disc superimposed in one plot)
+  // -layersSeparate (plain db for each layer/disc in separate plots)
+  // -layersSplit (splitted db for each layers/disc in one plot)
+  // -layersSplitSeparate (splitted db, for each layers/disc in separate plots)
+
   TRegexp layer_re("layer=[0-9]+");
   bool plotPlain = false, plotSplits = false, plotLayers = false;
   int plotLayerN = 0;
@@ -565,10 +573,13 @@ void PlotAlignmentValidation::plotDMR(const std::string& variable, Int_t minHits
   plotinfo.plotPlain = plotPlain;
   plotinfo.plotLayers = plotLayers;
 
+  // width in cm
+  // for DMRS, use 100 bins in range +-10 um, bin width 0.2um
+  // if modified, check also TrackerOfflineValidationSummary_cfi.py and TrackerOfflineValidation_Standalone_cff.py
   if (variable == "meanX") {          plotinfo.nbins = 50;  plotinfo.min = -0.001; plotinfo.max = 0.001; }
   else if (variable == "meanY") {     plotinfo.nbins = 50;  plotinfo.min = -0.005; plotinfo.max = 0.005; }
-  else if (variable == "medianX") {   plotinfo.nbins = 50;  plotinfo.min = -0.005; plotinfo.max = 0.005; }
-  else if (variable == "medianY") {   plotinfo.nbins = 50;  plotinfo.min = -0.005; plotinfo.max = 0.005; }
+  else if (variable == "medianX") {   plotinfo.nbins = 100;  plotinfo.min = -0.001; plotinfo.max = 0.001; }
+  else if (variable == "medianY") {   plotinfo.nbins = 100;  plotinfo.min = -0.001; plotinfo.max = 0.001; }
   else if (variable == "meanNormX") { plotinfo.nbins = 100; plotinfo.min = -2.0;   plotinfo.max = 2.0; }
   else if (variable == "meanNormY") { plotinfo.nbins = 100; plotinfo.min = -2.0;   plotinfo.max = 2.0; }
   else if (variable == "rmsX") {      plotinfo.nbins = 100; plotinfo.min = 0.0;    plotinfo.max = 0.1; }
diff --git a/Alignment/OfflineValidation/python/TrackerOfflineValidationSummary_cfi.py b/Alignment/OfflineValidation/python/TrackerOfflineValidationSummary_cfi.py
index 6c655f25fb222..39257f6656935 100644
--- a/Alignment/OfflineValidation/python/TrackerOfflineValidationSummary_cfi.py
+++ b/Alignment/OfflineValidation/python/TrackerOfflineValidationSummary_cfi.py
@@ -9,7 +9,10 @@
    
    # DMR (distribution of median of residuals per module) of X coordinate (Strip)
    TH1DmrXprimeStripModules = cms.PSet(
-     Nbinx = cms.int32(200), xmin = cms.double(-0.05), xmax = cms.double(0.05)
+         # width 2.0 um
+#     Nbinx = cms.int32(500), xmin = cms.double(-0.05), xmax = cms.double(0.05)
+     # width 0.5 um
+    Nbinx = cms.int32(5000), xmin = cms.double(-0.05), xmax = cms.double(0.05)
    ),
    
    # DMR (distribution of median of residuals per module) of Y coordinate (Strip)
@@ -19,12 +22,14 @@
    
    # DMR (distribution of median of residuals per module) of X coordinate (Pixel)
    TH1DmrXprimePixelModules = cms.PSet(
-     Nbinx = cms.int32(200), xmin = cms.double(-0.05), xmax = cms.double(0.05)
+#     Nbinx = cms.int32(500), xmin = cms.double(-0.05), xmax = cms.double(0.05)
+    Nbinx = cms.int32(5000), xmin = cms.double(-0.05), xmax = cms.double(0.05)
    ),
    
    # DMR (distribution of median of residuals per module) of Y coordinate (Pixel)
    TH1DmrYprimePixelModules = cms.PSet(
-     Nbinx = cms.int32(200), xmin = cms.double(-0.05), xmax = cms.double(0.05)
+#     Nbinx = cms.int32(200), xmin = cms.double(-0.05), xmax = cms.double(0.05)
+    Nbinx = cms.int32(5000), xmin = cms.double(-0.05), xmax = cms.double(0.05)
    )
    
 )
diff --git a/Alignment/OfflineValidation/python/TrackerOfflineValidation_Standalone_cff.py b/Alignment/OfflineValidation/python/TrackerOfflineValidation_Standalone_cff.py
index a354119420cbd..c9faeb2052e31 100644
--- a/Alignment/OfflineValidation/python/TrackerOfflineValidation_Standalone_cff.py
+++ b/Alignment/OfflineValidation/python/TrackerOfflineValidation_Standalone_cff.py
@@ -14,11 +14,11 @@
 #TrackerOfflineValidation.TH1NormXResStripModules.xmin = -3.0
 #TrackerOfflineValidation.TH1NormXResStripModules.xmax = 3.0
 
-TrackerOfflineValidation.TH1XprimeResStripModules.Nbinx = 2000
-TrackerOfflineValidation.TH1XprimeResStripModules.xmin = -0.1 #-0.5
-TrackerOfflineValidation.TH1XprimeResStripModules.xmax = 0.1 #0.5
+TrackerOfflineValidation.TH1XprimeResStripModules.Nbinx = 5000
+TrackerOfflineValidation.TH1XprimeResStripModules.xmin = -0.05 #-0.5
+TrackerOfflineValidation.TH1XprimeResStripModules.xmax = 0.05 #0.5
 
-#TrackerOfflineValidation.TH1XResStripModules.Nbinx = 2000
+#TrackerOfflineValidation.TH1XResStripModules.Nbinx = 5000
 #TrackerOfflineValidation.TH1XResStripModules.xmin = -0.5
 #TrackerOfflineValidation.TH1XResStripModules.xmax = 0.5
 
@@ -26,7 +26,7 @@
 TrackerOfflineValidation.TH1NormYResStripModules.xmin = -3.0
 TrackerOfflineValidation.TH1NormYResStripModules.xmax = 3.0
 
-TrackerOfflineValidation.TH1YResStripModules.Nbinx = 2000
+TrackerOfflineValidation.TH1YResStripModules.Nbinx = 5000
 TrackerOfflineValidation.TH1YResStripModules.xmin = -11.0
 TrackerOfflineValidation.TH1YResStripModules.xmax = 11.0
 
@@ -38,11 +38,11 @@
 #TrackerOfflineValidation.TH1NormXResPixelModules.xmin = -3.0
 #TrackerOfflineValidation.TH1NormXResPixelModules.xmax = 3.0
 
-TrackerOfflineValidation.TH1XprimeResPixelModules.Nbinx = 2000
-TrackerOfflineValidation.TH1XprimeResPixelModules.xmin = -0.1 #-0.5
-TrackerOfflineValidation.TH1XprimeResPixelModules.xmax = 0.1 #0.5
+TrackerOfflineValidation.TH1XprimeResPixelModules.Nbinx = 5000
+TrackerOfflineValidation.TH1XprimeResPixelModules.xmin = -0.05 #-0.5
+TrackerOfflineValidation.TH1XprimeResPixelModules.xmax = 0.05 #0.5
 
-#TrackerOfflineValidation.TH1XResPixelModules.Nbinx = 2000
+#TrackerOfflineValidation.TH1XResPixelModules.Nbinx = 5000
 #TrackerOfflineValidation.TH1XResPixelModules.xmin = -0.5
 #TrackerOfflineValidation.TH1XResPixelModules.xmax = 0.5
 
@@ -50,9 +50,9 @@
 TrackerOfflineValidation.TH1NormYResPixelModules.xmin = -3.0
 TrackerOfflineValidation.TH1NormYResPixelModules.xmax = 3.0
 
-TrackerOfflineValidation.TH1YResPixelModules.Nbinx = 2000
-TrackerOfflineValidation.TH1YResPixelModules.xmin = -0.1 #-0.5
-TrackerOfflineValidation.TH1YResPixelModules.xmax = 0.1 #0.5
+TrackerOfflineValidation.TH1YResPixelModules.Nbinx = 5000
+TrackerOfflineValidation.TH1YResPixelModules.xmin = -0.05 #-0.5
+TrackerOfflineValidation.TH1YResPixelModules.xmax = 0.05 #0.5
 
 TrackerOfflineValidation.TProfileXResStripModules.Nbinx = 34
 TrackerOfflineValidation.TProfileXResStripModules.xmin = -1.02