My wife is getting right at 36ft. lbs of KE in her set up at the moment. I have her shooting 100 grain NAP hellrazors. They are a cut on contact head with a 1 1/8 cutting diameter. She is 3 for 3 on whitetails this year. One was at 19 yards and another was 25 both were complete passthroughs and the third was 39 yards. The arrow didnt go completely through but the buck went less than 40 yards.