diff --git a/all.sas b/all.sas
index 6cdd079..27c485e 100644
--- a/all.sas
+++ b/all.sas
@@ -24216,15 +24216,12 @@ run;
   The function uses `dosubl()` to run the `table.fileinfo` action, for the
   specified library, filtering for `*.sashdat` tables.
 
-  IMPORTANT NOTE - The results are cached in a WORK table (&outprefix._&lib).
-  If that table already exists, it is queried instead, to avoid the
-  dosubl() performance hit.
-
-  To force a rescan, just use a new `&outprefix` value, or delete the table(s)
-  before running the function.
+  Results are cached in a WORK table (&outprefix._&lib).  If that table
+  already exists it is queried directly to avoid the dosubl() overhead.
+  To force a rescan, use a new `&outprefix` value or delete the cache
+  table before calling.
 
   @param [in] libds library.dataset
-  @param [in] usecache= (1) Set to 0 to rebuild the cache
   @param [out] outprefix= (work.mfv_existsashdat)
     Used to store current HDATA tables to improve subsequent query performance.
     This reference is a prefix and is converted to `&prefix._{libref}`
@@ -24235,14 +24232,13 @@ run;
   @author Mathieu Blauw
 **/
 
-%macro mfv_existsashdat(libds,usecache=1,outprefix=work.mfv_existsashdat
-);
+%macro mfv_existsashdat(libds,outprefix=work.mfv_existsashdat);
 %local rc dsid name lib ds;
 %let lib=%upcase(%scan(&libds,1,'.'));
 %let ds=%upcase(%scan(&libds,-1,'.'));
 
-/* if table does not exist, create it */
-%if &usecache ne 1 or %sysfunc(exist(&outprefix._&lib)) ne 1 %then %do;
+/* if cache table does not exist, build it */
+%if %sysfunc(exist(&outprefix._&lib)) ne 1 %then %do;
   %let rc=%sysfunc(dosubl(%nrstr(
     /* Read in table list (once per &lib per session) */
     proc cas;