I think, as some others have stated, that since you already have the model 60 .38, I would just keep it. I have a model 60-9, and a model 60-10, both of which are 357's, but I still only use them with 38 +p's. I know they are very capable of shooting the 357 cartridge, and many people use them for that. To me, though, I am satisfied with several .38 +p loads. Having said all that, however, I don't see a downside if you were to trade for one of the .357 j-frames. I like mine, and I just look at them as very durable 38's, with 357 capability. You'd be fine either way. wyatte