What is the difference (real world), in 65% and 80% ? Is there speed to be gained by that ? I just don't see why a person would want to go back to 65%. 55# draw w/80% let off leaves you holding roughly 11lbs, 65% is around 19lbs. If I can gain extra speed by that, I dont think 8 lbs is going to make or break me. School me fellas