I shot a pendulum at 370 fps this summer, experimenting with every conceivable variable, and it STILL wasn'tcompensating enough to shoot from zero-40.
I just scrapped the pendulum and went to a straight pin sight. I have one pin to 45 yards, but Istill have to play a fudge-factor game with it. That pin is zero'ed at 25 yards. At 35, I'm holding my first pin5" hot. At 40, I'm holding the 45 yard pin just a few inches low.
I know, a lot of you guys will call B.S. on the 370 number, so here's the proof.