I'm thinking about dipping my toe in appendix carry with my 640-1. I'd like to give it a try without sinking big bucks into a holster in case I can't get comfortable with it. I'd like a tuckable IWB with an offset clip to stay as thin as possible so the Slim-Tuk might be an ideal holster to started out with. Has anyone used one for a j frame? The net is full of photos with various autos in a Slim-Tuk, but I'd be interested how the j frame model actually looks.