
I use a FIST K5 pocket holster made from ultra thin kydex, which is truly ultra thin (but plenty stiff). One option you can get on that holster is a smooth sheet of kydex on the top so any printing would be flat and not show the gun at all (I didn't get that option).
As for the LCR itself, I'm very pleased with it. I chose it for similar reasons that you have expressed: I don't like the small autos, the LCR's Hogue grip is excellent, and the trigger is better than the S&W out of the box. Granted, you can always smooth a J-frame's trigger and they are fine guns as well; actually a bit smaller than the LCR so it conceals well. To me the size difference wasn't large enough to be important so I went with the one that fit my hand better.