I will always be hunting from a treestand. I just went and bought a 6-pack of new Muzzies today (tried and true) and I want to sight my bow in to match the broadheads perfectly. My question is this, can I sight them in on the ground and expect them to work once I get airborn or should I actually get elevated to my hunting height to sight them in? How will it affect my ground target practice if I sight it in 20 feet in the air? I'm going to go with 10, 20 and 30 yards by the way.