diff --git a/.git-hooks/pre-commit b/.git-hooks/pre-commit
index 2a039c0..e539335 100755
--- a/.git-hooks/pre-commit
+++ b/.git-hooks/pre-commit
@@ -15,15 +15,4 @@ if [[ "$BRANCH" =~ ^(master|main|develop)$ ]]; then
   echo "You are on branch $BRANCH. Are you sure you want to commit to this branch?"
   echo "If so, commit with -n to bypass the pre-commit hook."
   exit 1
-fi
-
-## Avoid large commits
-# https://www.backblaze.com/blog/how-many-bytes-are-in-a-megabyte-really/
-size_limit=$((2 * 2**20)) # 2mbs
-# https://git-scm.com/docs/git-rev-list#Documentation/git-rev-list.txt---disk-usage
-commit_size=$(git rev-list --disk-usage HEAD^..HEAD)
-test "$commit_size" -lt "$size_limit" || (
-  echo "Commit size is too large: $commit_size > $size_limit"
-  echo "Force commit using --no-verify"
-  exit 1
-)
+fi
\ No newline at end of file
diff --git a/all.sas b/all.sas
index 3838e5e..9c7d691 100644
--- a/all.sas
+++ b/all.sas
@@ -1121,7 +1121,7 @@ or %index(&pgm,/tests/testteardown)
   @author Allan Bowe
 **/
 
-%macro mf_getuniquelibref(prefix=mclib,maxtries=1000);
+%macro mf_getuniquelibref(prefix=mc,maxtries=1000);
   %local x;
 
   %if ( %length(&prefix) gt 7 ) %then %do;
@@ -24519,6 +24519,13 @@ run;
 %put &sysmacroname: &name created at %mfv_getpathuri(&path/&name);%put;
 %put    &base_uri/SASJobExecution?_file=&path/&name;%put;
 
+%if &mdebug=0 %then %do;
+  /* clear refs */
+  filename &fname1 clear;
+  filename &fref clear;
+  libname &libref2 clear;
+%end;
+
 %mend mv_createfile;/**
   @file mv_createfolder.sas
   @brief Creates a viya folder if that folder does not already exist
diff --git a/base/mf_getuniquelibref.sas b/base/mf_getuniquelibref.sas
index b5999d5..fe035c7 100644
--- a/base/mf_getuniquelibref.sas
+++ b/base/mf_getuniquelibref.sas
@@ -26,7 +26,7 @@
   @author Allan Bowe
 **/
 
-%macro mf_getuniquelibref(prefix=mclib,maxtries=1000);
+%macro mf_getuniquelibref(prefix=mc,maxtries=1000);
   %local x;
 
   %if ( %length(&prefix) gt 7 ) %then %do;
diff --git a/viya/mv_createfile.sas b/viya/mv_createfile.sas
index 2f7d675..2abff7b 100644
--- a/viya/mv_createfile.sas
+++ b/viya/mv_createfile.sas
@@ -244,4 +244,11 @@ run;
 %put &sysmacroname: &name created at %mfv_getpathuri(&path/&name);%put;
 %put    &base_uri/SASJobExecution?_file=&path/&name;%put;
 
+%if &mdebug=0 %then %do;
+  /* clear refs */
+  filename &fname1 clear;
+  filename &fref clear;
+  libname &libref2 clear;
+%end;
+
 %mend mv_createfile;
\ No newline at end of file