When I do carry my S&W 640 .357 it is in an Uncle Mike's IWB clip on holster that is situated between my pants and inside of my belt. This keeps it very close to my body and works great as long as I am wearing an untucked shirt, which isn't very often. I am wondering if anyone uses a tuckable holster with their J frame and how pleased are you with it? Please include make and model if you do. Thanks, Mike