A friend of mine has one of those J frame scandiums and he had similar injuries to his hand with .357's. That's why I use the L frame Airlite for .357's. A little heavier, but still light, and more grip to hang on to. When I need more concealment I carry the model 442 J frame, which looks similar to Doc's 340PD but has an aluminum frame and weighs a few more ounces. It only shoots 38's. Below are a couple of pics. It is a little scratched up from carrying off and on for 15 years.
Roger