I shoot a 60.7 lb. Hoyt bow and use both 28" and 29"arrows. 100 gr. points. In the Easton line of arrows, the 400 series are about perfect. I tried some 340 series awhile back and, even with 125 gr. heads, they were showing signs of being too stiff. Charts show I would need to get up to at least 65 lbs. to need a 340 series arrow - or go to a 30" or 31" arrow.