I've been thinking of getting a .357 j-frame snubby as an alternate carry - either the 640 pro w 2" barrel but no external hammer, or the 60 pro which has a 3" bbl and an external hammer for range shooting enjoyment, but it's not as concealable and I can only buy one darn it. I've never had a dao hammerless type revolver so it feels a little strange, although I do carry a little .380 ruger LCP in my pocket which is dao, but it's not a revolver. As I write this I'm thinking there's not much anyone can say, the choice is ultimately mine to make. Logic has me leaning towards the 640 cause concealability trumps target shooting in the real world. Anyone want to chime in please do, thanks for listening.