This should be in the revolver board. I have a M85SSUL and have fired several 642s. My 85 has the best out of the box trigger on any DA revolver I've ever felt. It's miles better than any J frame Smith I've ever fired, dry or otherwise. It's 3" at 25 yards accurate. I don't see how it gets any better. I've had it since '96. It's a good primary pocket gun, though it does have the exposed hammer. I have no problems with that catching, though, and prefer it to concealed hammers like on the 642. Either one is a good choice for carry, but just reporting on my 85, is a real gem. Wouldn't trade it for 5 642s, or lets say, if I did, it'd be purely for economic reasons.
Now, I prefer my ultralite for pocket carry. It is a primary or sometimes rides there as a back up to a Taurus 3" 66 .357 magnum on the belt. It does have some snap to it, though, even with non-+P, so if you get an alloy framed .38, be prepared for that. These guns, the Smith and the Taurus, are offered in all steel which go around 23 ounces, a lot easier to shoot. I'm quite used to it, though, and shoot it rather well. I carry 158 +P in it.
BTW, I'll always and forever recommend a revolver as a first gun for a beginner over an auto. It's an easier gun to learn on, safety built into its design. Glocks are real easy to shoot your leg off with. Lots of cops have given themselves Glock leg, not just football players in New York.
There's a famous vid of a DEA agent on youtube that everyone's seen.
