My brother owned a "cop shop" in the late-'70's and early-'80's. The chief complaint from his customers who had been issued K-frame .357's was that those guns had "shot loose" (excessive end shake). Most of the ones who replaced issue K-frame Model 13's and 19's, ended up buying an N-frame S&W, or a Colt Python.

This doesn't mean that lots of officers/agents had problems with K-frame .357's. Your own post is testament to the fact that the K-frame performed all right for you. I just pointed out that excessive end shake was a known issue in the K-frame, and the "fix" was to not load it with .357 ammo.

Unless you're Jerry Miculek, reloading a revolver quickly is always an issue.