shooting from a tree or the ground
I heard a guy the other day say that shooting from a tree the and the angle of ther arrow that say a 25 yard shot you would just use your 20 yard pen because of gravity and the arrow is traveling down not flat as if you were on the ground. Most of my stands are from 15-25 feet in the air. Is this true. I practice from on top of my house but I am limited on how far I can shoot. What is your experience?