Well, I' m a mechanical engineer, and I can assure you that there are too many variables to allow you to develop some kind of " rule of thumb" that could be applied correctly in every instance.

First, you have to realize that the amount of " adjustment" made by a pendulum sight depends on the pendulum radius (distance from pin to pivot.) I' m not sure if that' s the same on all different brands or not.

The other problem is that the pendulum adjustment is strictly made by the relationship of the riser sight holes to horizontal. So, you can' t make any " rules" about distance unless you' re hunting level ground from the EXACT same treestand height every time. Even if our bow setups were exactly the same, if you hunt at 15 feet from the ground and I hunt at 30, our " rules" won' t match.