Wow,You guys have way too much time on your hands.I can hardly reset the time on the VCR,and you guys are figuring out all these calculations for a treestand shot,unbelieveable!
I hunt alot of hillsides,and I could just see myself making a bunch of calculations for a shot.
Practice,know your equipment and skill,bend at the waist,and use a rangefinder.
One other thing,Aim a little low,you will be amazed how well this works when shooting out of a treestand...Bob