I have to side with the REV. on this. I am new to bowhunting but I am seriously considering the pendulum sight for tree stand hunting. Anyone know of a good one with bright fiber? I think once you get this sighted in right, the elevation problem is solved, then all you need to do is mark a few landmarks around the stand you will hunt. This is where a rangefinder comes in handy. You need to range these distances horizontally and not from a tree stand. Mark them and you "should" be good to go.