I have several S&W revolvers and pretty much know how much "wiggle" after lock-up is usual on a Smith. Picked up two guns (28-2/67) that were in very good shape but had too much "wiggle" (my opinion). Did some research on the Internet and the recommendation was to get the MIM cylinder stop (better specs?) from Brownells. Did so plus got the cylinder stop spring to go along and installed them. They dropped right in and lessened the "wiggle" a lot. Need to get out to shoot the guns but I'm amazed how easy that was!