I' m going to throw another loop into this. Please correct me or confirm this, if anyone else has heard this.

As an arrow is shot from a tree, it is angled so the tail is up and the head is down.....obviously. I' ve heard you should aim low because the natural tendency of an arrow is, while in flight, to actually plain up, and due to gravity I' m sure , start to fly parrallel to the ground. Not sure if this true. Someone has all ready pointed this out, however, regardsless of where you think you should at a deer while in a tree, you should practice from up high before you hunt high. Good luck this season to all!!!!!

J