I shoot off sticks a lot, here in whitetail country as well as Africa. I think if the sticks are leaned a little towards you, it helps you triangulate and steadies them. In other words the feet of the sticks farther forward, the rest pulled towards you. Also I let the forend rest on the sticks but hold the rifle just as if I was shooting offhand. Someone else said to keep your feet square, which I do when shooting offhand too, I don't stand sideways with the butt on the arm bone, shooting heavy calibers has taught me to square up to a rifle and pull it into my shoulder. I shoot probably 75% of my practice offhand, and use sticks exactly the same as offhand, but with support. Get your offhand stance perfected, then add the sticks if that makes sense.
