I'm pretty much settled in on a Claw using an "African carry" I guess it is (muzzle down, soft part of sling attached to butt stock). It doesn't move, I can see the muzzle all the time, my scope is protected by my side, and I can use it easily with a backpack on.
My hunting partner uses a one point QD deal that he says he likes, but I don't have a reason to change as I'm used to my system.
Sendit