My practice out of tree stands tends to be at the closer ranges that I would take a hunting shot. My groups may shrink, but I seriously doubt that would hold at the ranges I practice from the ground. The key is to keep your upper body orientation unchanged or you tend to shorten your draw length. Some recommend a normal horizontal draw and then bending at the waist, but that requires alot of movement that may get you busted. G. Fred bends one knee to get the correct angle and then tries to duplicate a normal draw. This sounds reasonable but I think is harder than it looks. I think shooting from a seated position minimizes movement, but I know I don't practice it enough.