Last summer one of my shooting acquaintances wanted to try three under and asked to use my target. We found that the nock had to up 1/4" to get his arrows to fly at all and the bow banged more. He did not like how downward his arrows looked so I gave him a Three Rivers feather arrow rest to lift the arrow, better arrow flight was obvious. Then just a touch higher with nocking point, his arrows flew perfect and the bow quieted down as well. I do not know if this was Hoyle, but it worked.