diff --git a/libs/cartesiandomain/cartesianmotion_withreset.hpp b/libs/cartesiandomain/cartesianmotion_withreset.hpp
index 20da70d5c..04baf6f48 100644
--- a/libs/cartesiandomain/cartesianmotion_withreset.hpp
+++ b/libs/cartesiandomain/cartesianmotion_withreset.hpp
@@ -119,7 +119,7 @@ struct ResetSuperdrop
   {
     const auto sdgbxindex = urbg(gbxidxs.first,
                                  gbxidxs.second); // randomly selected gbxindex in range {incl., excl.} 
-   
+
     const auto bounds = gbxmaps.coord3bounds(sdgbxindex);
     const auto coord3 = urbg.drand(bounds.first, bounds.second); // random coord within gbx bounds
 
diff --git a/scripts/create_gbxboundariesbinary_script.py b/scripts/create_gbxboundariesbinary_script.py
index 53578f188..77ac30448 100644
--- a/scripts/create_gbxboundariesbinary_script.py
+++ b/scripts/create_gbxboundariesbinary_script.py
@@ -6,7 +6,7 @@
 Author: Clara Bayley (CB)
 Additional Contributors:
 -----
-Last Modified: Thursday 21st December 2023
+Last Modified: Thursday 28th December 2023
 Modified By: CB
 -----
 License: BSD 3-Clause "New" or "Revised" License
@@ -44,9 +44,9 @@
 gridfile =  binariespath+"/dimlessGBxboundaries.dat" # note this should match config.txt
 
 ### input parameters for zcoords of gridbox boundaries
-zmax = 1500 # maximum z coord [m]
+zmax = 100 # maximum z coord [m]
 zmin = 0 # minimum z coord [m]
-zdelta = 300 # even spacing
+zdelta = 100 # even spacing
 zgrid = [zmin, zmax, zdelta] 
 
 ### input parameters for x coords of gridbox boundaries
diff --git a/scripts/create_initsuperdropsbinary_script.py b/scripts/create_initsuperdropsbinary_script.py
index c0034996b..2477947c0 100644
--- a/scripts/create_initsuperdropsbinary_script.py
+++ b/scripts/create_initsuperdropsbinary_script.py
@@ -53,7 +53,7 @@
 # zlim = 1000
 # npergbx = 8
 # nsupers =  crdgens.nsupers_at_domain_base(gridfile, constsfile, npergbx, zlim)
-nsupers = 40
+nsupers = 200
 ### ------------------------------------------- ###
 
 ### --- Choice of Superdroplet Radii Generator --- ###
diff --git a/src/config/config.txt b/src/config/config.txt
index 07a631c57..199bfb973 100644
--- a/src/config/config.txt
+++ b/src/config/config.txt
@@ -6,7 +6,7 @@
  * Author: Clara Bayley (CB)
  * Additional Contributors:
  * -----
- * Last Modified: Thursday 21st December 2023
+ * Last Modified: Thursday 28th December 2023
  * Modified By: CB
  * -----
  * License: BSD 3-Clause "New" or "Revised" License
@@ -39,7 +39,7 @@ maxchunk = 1250000                        # maximum no. of elements in chunks of
 ### SDM Runtime parameters ###
 # domain setup #
 nspacedims = 1                            # no. of spatial dimensions to model 
-ngbxs = 5                                 # total number of Gbxs
+ngbxs = 1                                 # total number of Gbxs
 totnsupers = 200                          # (initial) total no. of SDs
 
 # timestepping #
diff --git a/src/main.cpp b/src/main.cpp
index 021ef5d96..007c9ddf5 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -6,7 +6,7 @@
  * Author: Clara Bayley (CB)
  * Additional Contributors:
  * -----
- * Last Modified: Thursday 21st December 2023
+ * Last Modified: Thursday 28th December 2023
  * Modified By: CB
  * -----
  * License: BSD 3-Clause "New" or "Revised" License
@@ -172,8 +172,8 @@ create_motion(const unsigned int motionstep)
   // const auto terminalv = RogersYauTerminalVelocity{};
   const auto terminalv = SimmelTerminalVelocity{};
 
-  const auto ngbxs = (unsigned int)5; // total number of gbxs
-  const auto ngbxs4reset = (unsigned int)2; // number of gbxs to randomly select in reset
+  const auto ngbxs = (unsigned int)1; // total number of gbxs
+  const auto ngbxs4reset = (unsigned int)1; // number of gbxs to randomly select in reset
   return CartesianMotionWithReset(motionstep,
                                   &step2dimlesstime,
                                   terminalv,