my draw weight is 72-74 pounds, and my draw length is 29 inches. I know that the bow is tuned good. I do shot the same weight arrow all the time 411 grains. they have to be that heavy out here in idaho or at least over 400 grains. I shoot two diffrent types of flechings 1 is the 2.25 inch quickspins and the other is 4 inch duravans with a right helical both arrows have the same result. they are both out of the same bunch of arrows that are about two years old. I also shoot often, 50 to 100 arrows three to four days a week.