RE: Aiming at long distances
No doubt the farther the shot the more the drop. I should have been more specific when I said "typical hunting shot"--to me, that's 25 yds or less, and from what I can gather that is the the max range for most trad archers in a hunting situation
Ballistics and drop are measured in a straight line, and will change from an elevated shot, depending on the angle--the steeper the angle, the less drop over the distance covered by the arrow. Again, with the exaggerated example, if you are 90' up and the target it 10 yds from the base of the tree, you aren't going to get nearly as much arrow drop as you would if you were 30' up and the target was 30 yds from the base. It's interesting stuff, and would be a bugger to figure out and keep in your mind for every elevation you hunt from. For me, the best solution is just practice from the heights you hunt from. I'm usually 15-25 feet high, and the targets 20 yds or less. At that height/range, I don't make any concious adjustments. I won't shoot at an animal much further than that (and only if everything feels right), and I have only had one or two shots at a tournament that were elevated and at a longer distance.
Chad