2 years ago i moved to a single pin and so far seems good. I shoot an HHA sight. In order to be ready for those fast acting whitetail scenarios i leave my pin set on 30yrds and practice at 40 and 20 so i dont have to move the pin. I shoot about 4"high at 20 and about 9" low at 40 with the pin set at 30. All of my hunting situations in the last 2 years have allowed me to move the pin to the exact yardage but i like to be ready for the fast ones when i dont have time to move the pin. Just some food for thought.