ORIGINAL: Dbldroptine
bowtech-1, the pythagorean theory does work, its just a pain to remember and calculate while your staring at a nice buck. If you set your stand at 25' high and if you know the distance to the animal from the base of the tree is 20 yds then you would aim as if the animal is 15 yds away. Likeeveryone said, just practice. Although, it does matter in rifle or muzzleloading when taking steep uphill or downhill shots at long distances.
What? Absolutely NOT....if the deer is 20 yards away, you shoot the deer for 20 yards using proper form....
Yes if you shoot for 15 you will hit the deer lower than if you shoot it for 20 but I aim for a hair....in a 3D tourney, you would be low ten, missing the 12 if not an 8...don't add or subtract any distance...shoot for the horizontal distance.