I've got several 4" S&Ws from .22 to .44 mag. Lately I went on a binge and bought four .357 S&W 2-1/2" snubs - two blued, one SS and one nickel plated. If I could, my 4" M29 would be a constant companion on my romps through the woods with my dogs, loaded with 200 gr .44 Spl.s, a load I can place where I want them. 240s during bear/berry season.
The .357 snubs have become my favourite guns in IDPA. They come out of a holster fast, are very concealable (not that a 4" is any different in that regard) and I find the short sight radius to be an asset rather than a detriment to acquiring a sight picture. Scoring down '0' at 20 m is no great challenge.
I don't shoot magnum loads in IDPA, just .38 Spl. Due to the short ejector rods on the snubs, they come out of the cylinder much easier. Accuracy wise, they give away nothing to my 4" M66. I shoot 158 RNFPs with a good dose of Tite Group.
The hell of it is you need 12(6) to shoot the snubs (snubbies are 2" .38 Spl.s, usually 5 shots).