Guess I qualify as skinny at 5'11" and 170, LOL. I like my 365XL and for now I'm still using the OWB holster that came with my pistol as a kit and wear it at the 4 o'clock position. Just make sure that my T-shirt is long enough to cover when I bend over and don't worry too much about printing, as others have said, most people aren't looking close enough to even notice if you're carrying or not and I don't really care if they do any more.
When i first started carrying I felt like everyone was looking at me, knowing that I was carrying. Carry long enough and you almost forget that you are and you stop thinking that everyone else is looking at you.