I agree. That's sage advice.

As far as penetration goes, whether it was premium .38+P, or .357 from snub barrels, both should stop in roughly 12 - 14 inches in gel. Where I've seen overpenetration is with .38s failing to expand. That hasn't been an issue when I've tested .357s. Perhaps Erich has seen something different come from the morgue?

I think the power of the .357 could give it an edge against bone. We all don't agree on this here, but I believe that muzzle energy can be a factor in stopping power with more powerful service calibers, and the .357, even from a snub, definately qualifies. If I only have five or six shots, I want them to hit as hard as possible.

All that said, I don't think that either cartridge is the right answer for everyone. You'll have to asses your ability and decide for yourself.