Neither the 5.5 or 7.5 are hip guns; the 4inch version isn't either, even if you're a big guy.

The 7.5 is generally easier to hit with and allows for less recoil no matter what you decide to run through it. I've used a Simply Rugged pancake for them and the only detraction is that it's not any kind of speed rig; if you're stand or still hunting, it will be fine for the purpose and easier to hit with.