Guys, I've got this .357 Colt, see ... it's the one that's the pre-Python? We're getting along real well - nice groups and good lookin' gun ... bigger than I'd like, but it'll do. Anyway, MOST of the time, when you fire, the trigger comes back, the hammer rises and falls and life is good ... Most of the time, I can squeee off a round without the gun shifting or wiggling in my hand hardly at all - like you'd expect from a smooth Python. Then, next time you do it, it fights the squeeze and takes more pressure than before and just wrecks your group. What the &%^%$#!? Is this to be expected? Am I not doing someting one is supposed to do?! (I can't guess what!) Or do I go trade it for a 19!?