I used an HHA Slider but have since installed the fixed mount and set my pin to 25 yards. It is 1" high at 20 and 2" low at 35. It's amazing how fast an arrow drops after 35 yards so that is what I try to limit myself to.

With the single pin setup I have, I think I will try the Hindsight after the season is over. I'm hoping that setup will be simplicity in itself.