diff --git a/DDG4/python/DDG4.py b/DDG4/python/DDG4.py
index d98cc39b29bf6e118a710f2275cf1f30fbb5f537..eb08220342bd6e56604a5182bc0d316795437d40 100644
--- a/DDG4/python/DDG4.py
+++ b/DDG4/python/DDG4.py
@@ -670,7 +670,7 @@ class Geant4:
       return (seq, acts)
     return (seq, acts[0])
 
-  def setupCalorimeter(self, name, type=None, collections=None):  # noqa: A001
+  def setupCalorimeter(self, name, type=None, collections=None):  # noqa: A002
     """
     Setup subdetector of type 'calorimeter' and assign the proper sensitive action
 
@@ -680,13 +680,12 @@ class Geant4:
     self.description.sensitiveDetector(str(name))
     # sd.setType('calorimeter')
     if typ is None:
-      type = 'calorimeter'
       typ = self.sensitive_types['calorimeter']
     elif typ is not None and self.sensitive_types.get(typ):
       typ = self.sensitive_types[typ]
     return self.setupDetector(name, typ, collections)
 
-  def setupTracker(self, name, type=None, collections=None):  # noqa: A001
+  def setupTracker(self, name, type=None, collections=None):  # noqa: A002
     """
     Setup subdetector of type 'tracker' and assign the proper sensitive action
 
@@ -696,7 +695,6 @@ class Geant4:
     self.description.sensitiveDetector(str(name))
     # sd.setType('tracker')
     if typ is None:
-      type = 'tracker'
       typ = self.sensitive_types['tracker']
     elif typ is not None and self.sensitive_types.get(typ):
       typ = self.sensitive_types[typ]
diff --git a/examples/ClientTests/compact/BoxOfStraws.xml b/examples/ClientTests/compact/BoxOfStraws.xml
index 243e4eaeee55b5ccf6be34eaf3938647c9070e9e..82a9f67660662c2dc19de0d305845ae5c7315909 100644
--- a/examples/ClientTests/compact/BoxOfStraws.xml
+++ b/examples/ClientTests/compact/BoxOfStraws.xml
@@ -68,7 +68,7 @@
   
   <readouts>
     <readout name="BoxOfStrawsHits">
-      <id>system:8,module:16,straw:16,y:-12</id>
+      <id>system:8,layer:16,straw:16,y:-12</id>
     </readout>
   </readouts>
 
diff --git a/examples/ClientTests/src/BoxOfStraws_geo.cpp b/examples/ClientTests/src/BoxOfStraws_geo.cpp
index fca3363a1ef72404b501d688c8395dc6317e545a..afd12b1c3d6612efbff1c481da678ae23d5a187a 100644
--- a/examples/ClientTests/src/BoxOfStraws_geo.cpp
+++ b/examples/ClientTests/src/BoxOfStraws_geo.cpp
@@ -52,14 +52,14 @@ static Ref_t create_detector(Detector& description, xml_h e, SensitiveDetector s
   Volume box_vol(nam, box, description.air());
   box_vol.setAttributes(description, x_box.regionStr(), x_box.limitsStr(), x_box.visStr());
 
-  Box    row(x_box.x(), x_box.y(), x_straw.rmax());
-  Volume row_vol("row", row, description.air());
-  row_vol.setVisAttributes(description.visAttributes("InvisibleWithChildren"));
+  Box    layer(x_box.x(), x_box.y(), x_straw.rmax());
+  Volume layer_vol("layer", layer, description.air());
+  layer_vol.setVisAttributes(description.visAttributes("InvisibleWithChildren"));
   
-  printout(INFO, "BoxOfStraws", "%s: Row:   nx: %7d nz: %7d delta: %7.3f", nam.c_str(), num_x, num_z, delta);
+  printout(INFO, "BoxOfStraws", "%s: Layer:   nx: %7d nz: %7d delta: %7.3f", nam.c_str(), num_x, num_z, delta);
   for( int ix=0; ix < num_x; ++ix )  {
     double x = -box.x() + (double(ix)+0.5) * delta;
-    PlacedVolume pv = row_vol.placeVolume(straw_vol, Position(x, 0e0, 0e0));
+    PlacedVolume pv = layer_vol.placeVolume(straw_vol, Position(x, 0e0, 0e0));
     pv.addPhysVolID("straw", ix);
   }
 
@@ -67,10 +67,10 @@ static Ref_t create_detector(Detector& description, xml_h e, SensitiveDetector s
   Rotation3D rot(RotationZYX(0e0, 0e0, M_PI/2e0));
   for( int iz=0; iz < num_z; ++iz )  {
     double z = -box.z() + (double(iz)+0.5) * delta;
-    PlacedVolume pv = box_vol.placeVolume(row_vol, Transform3D(rot, Position(0e0, 0e0, z)));
-    pv.addPhysVolID("module", iz);
+    PlacedVolume pv = box_vol.placeVolume(layer_vol, Transform3D(rot, Position(0e0, 0e0, z)));
+    pv.addPhysVolID("layer", iz);
   }
-  printout(INFO, "BoxOfStraws", "%s: Created %d rows of %d straws each.", nam.c_str(), num_z, num_x);
+  printout(INFO, "BoxOfStraws", "%s: Created %d layers of %d straws each.", nam.c_str(), num_z, num_x);
   
   DetElement   sdet  (nam, x_det.id());
   Volume       mother(description.pickMotherVolume(sdet));