My 4" GP100 is my 'if you could only have one handgun' handgun.
Yesterday I shot my best ever double action group at 25 yards. That made me very happy. Very impressed with my new 'Geep'.
I just wish the original style rubber with wood panel grips fit me better, they look good. Fortunately the new style Hogue rubber finger groove grips fit like a glove, probably why my DA shooting is so good with this gun. That and the smooth trigger.