I do use it on every shot. Does it matter on a 15-20 yard range, probably not much. But, archery is about consistancy in form and release, so I try to keep everything as close to the same as possible. Plus, with all of the variables in the tree, platform angle, limbs, shooting lanes, wind, etc, I find I have more of a tendency to cant the bow than on the ground.
Last edited by AH64guy; 11/14/14.