When I carry, I typically wear an undershirt so I can have something between my skin and my firearm. I put my Glock 26 in a Raven Concealment Vanguard 2 at the 8:00 position (I'm a lefty), and put my spare Glock 17 mag in a Raven mag carrier at the 4:00 position. I've found that loose tshirt can hide everything just fine. Now that it's colder, it's even easier. It took a lot of experimenting and holster testing to finally get a setup that I'm happy with, but I think that's it.