Nope. I have a 2" and 3". Both perfect. Really, it's not an entirely new design inside. The internals look very much like a a Smith centennial, perhaps a bit cleaner / smoother. Only minor differences. Also, it's timed to index hard and fast early in the trigger pull. Makes it very easy to stage shots for almost single action accuracy. The fit and finish is excellent.

Fits in most Colt D Frame (Detective / Cobra) holsters. Trigger guard is a bit long for some, but not so much that it's a problem. I use a TT Gunleather holster made for the Kimber and Colt holsters. EDIT: I carry my 3" in a K Frame holster.