I have a 340 pd hiviz, I carry fp.38s in mine. Does anybody carry .357s in theirs? I do when Im in bear country, but thats about it. A little bit dangerous to carry on the street I think, let alone the control issues on getting quick .357 shots off out of a 12 oz. gun.
Ive also heard of the 4x.38/1x.357 setup. I dont think that means a lot. It seems more like a novelty or something cool to tell your friends about.