I feel your pain on Texas summers. I'd say look for a Smith or Taurus in either alloy or titanium or scandium. Steel guns are too heavy in a pocket. I have a Taurus M85UL that's quite light at 15 ounces and comfortable. If you have a titanium budget, those things are a few ounces lighter and titanium is a stronger metal, though the M85UL is +P rated and Taurus guns have lifetime warranties.
My gun has an exposed hammer. I prefer a hammer spur on my guns, but a true pocket gun should be hammerless or at least spurless to avoid it hanging on the pocket on the draw. You can train to put your thumb up on the hammer on the draw to avoid this, but it's more pocket friendly without a hammer spur.
I can tell you, the Taurus revolvers, despite what the S&W gun snobs will tell you, are fantastic quality, at least the ones I've owned and shot. I have two at the moment. They have really slick out of the box DA triggers and are accurate as anything from S&W. I've owned Smith and Wesson, Ruger, Taurus, and Rossi revolvers and my favorite has been Taurus, though I can't knock the others, especially the Rugers. Smith and Wesson makes fine firearms, but IMHO they're over-priced and I still don't know what to think about MIM parts and the S&W designed lock. Lots of griping about that, but I don't know if it's well founded or just griping because they "ain't makin' 'em the way they used to. I kinda think the later, but haven't made up my mind on it. I haven't bought a Smith since my M19 25 years ago.
There seems to be a lot of negative opinion of both the MIM parts thing and the frame locks, though. I KNOW Taurus makes fantastic revolvers, so I've decided if I get another NEW revolver in the future, I'll look to Taurus. I'm sorta wanting a good used K frame Smith right now or maybe an older Ruger Speed or Security Six. Want a snub barreled one and would really like a round butt. I won't be pocket carrying it, though, strictly IWB.
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