RE: Long Range Shooting
I would set 20-30-40-50-60. A three pin would work though, and for thatI would set 20-30-40 and then you could stack effectively out to 50 and 60 if needed.
I would use a range finder for sure, and I would also make sure that my FOC was up to about 11-12%. Higher FOCs will stabilize your arrows much better at the longer distances.