diff --git a/site_ansto/instrument/kookaburra/config/hmm/hmm_configuration.tcl b/site_ansto/instrument/kookaburra/config/hmm/hmm_configuration.tcl
index cc1819ae..4b1e7e7f 100644
--- a/site_ansto/instrument/kookaburra/config/hmm/hmm_configuration.tcl
+++ b/site_ansto/instrument/kookaburra/config/hmm/hmm_configuration.tcl
@@ -44,6 +44,17 @@ return {
 }
 }
 
+proc ::histogram_memory::init_FAT_TABLE {} {
+  FAT_TABLE -set COUNT_ROI_TYPE RECTANGULAR
+  FAT_TABLE -set COUNT_ROI_REGION INCLUSIVE
+  FAT_TABLE -set COUNT_ROI_XMIN 0
+  FAT_TABLE -set COUNT_ROI_XMAX 4
+  FAT_TABLE -set COUNT_ROI_YMIN 0
+  FAT_TABLE -set COUNT_ROI_YMAX 1023
+  FAT_TABLE -set COUNT_ROI_TMIN 0
+  FAT_TABLE -set COUNT_ROI_TMAX 1e9
+}
+
 proc ::histogram_memory::init_CAT_TABLE {} {
   CAT_TABLE -set MESYTEC_MPSD8_CHANNEL_GAINS {
     1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
@@ -107,6 +118,7 @@ proc ::histogram_memory::isc_initialize {} {
   # hmm configure FAT_SIMULATED_EVENT_X0 $x_bb0
   # hmm configure FAT_SIMULATED_EVENT_X1 $xbbmax
     ::histogram_memory::init_OAT_TABLE
+    ::histogram_memory::init_FAT_TABLE
 #   ::histogram_memory::init_SAT_TABLE
 #   ::histogram_memory::init_CAT_TABLE
     ::histogram_memory::upload_config Filler_defaults
diff --git a/site_ansto/instrument/kookaburra/config/motors/motor_configuration.tcl b/site_ansto/instrument/kookaburra/config/motors/motor_configuration.tcl
index 511e2ef8..dafbb1ae 100644
--- a/site_ansto/instrument/kookaburra/config/motors/motor_configuration.tcl
+++ b/site_ansto/instrument/kookaburra/config/motors/motor_configuration.tcl
@@ -308,7 +308,7 @@ m1x home 0
 # mc2: Slit system - 1 TOP Blade
 # Gearbox 55:1, pitch 0.5mm
 # Encoder 2p13
-set ss1u_Home     918407
+set ss1u_Home     754567
 set ss1uSetRate   [expr $motorrate*55.0/0.5]
 Motor ss1u $motor_driver_type [params \
   asyncqueue mc2\