Good comments all.....thanx. I do want to continue to ride the thumb safety. Toward that goal, I did add some JB WELD to the grip safety "bump" and I love the result. It raised it up about a 1/4" and I think that will make all the difference I needed. Although I haven't shot it yet, my draw and dry fire testing results have been just what I'd hoped for. .............instead of concentrating on depressing the grip safety, I can concentrate on front sight, target, press, etc. It seems like even w/ a sloppy grip I can easily depress the grip safety. My next USPSA match is next week, and I will try it out......... I expect good results !! Thanx for your assistance .......