RE: Momentum vs KE ....who is switching over this year?
I've not seen an arrow flying fast enough to only have 4", or less, drop from 20-40 yards. Last year when I was shooting 320 FPS I had 3" from 20-30......And you're saying you have less than that from 10 yards farther?
I shoot an HHA single pin as well. In a hunting situation, I leave my pin set on 27 yards. I'm 1 1/2"low at 30 and 1 1/2" high at 20. I simply cannot see how anyone could have less than 4" of drop from 20-40 yards. What I've found is that the more experienced archers will, subconciously, account for the yardage and hold a little higher without really realizing it. You would have to be shooting in excess of well over 400 fps for those kinds of ballistics. And, shooting a really light arrow to get those speeds.....And as we know, a light arrow loses it's velocity much quicker than a heavier arrow.