I have never seen this when I shoot my CB's. I never seen it with my old Horton, never seen it with my Super Max, and it ain't there with the Vortex. I get my tree stand practice off of a barn roof that is 22 feet to the top of the roof, it is a huge flat roof barn big enough to pull a combine in that the father in-law has to work on tractors. I have never seen a difference and I have done alot of shooting off of it. At least never much enough to notice it. I personally think the shooting high thing is a myth that people come up with. Gravity is gravity no matter what you do it so being up in a tree does not change the laws of gravity and make your arrow lighter and hit high IMO. I also think the new range finders that they are coming out with are putting this to rest also. The compensate for the angle and give you a true distance to target from base of hill or high in a stand looking down, not a straight line distance measurement. Why do thy do this, cause it is the true distance not the angle that is important. I could have a magical bow, but mine has always shot the same.