I have put NAP,s QUICK SPIN on all my arrows only after i shot a dozen of them. yes they do spin the arrow more but you sure can't hardly see it. i used a right hand off-set like NAP recommended. they shoot real good nut they are about 20$ for 36vanes in a pack. or you can go to cabela's and get them on the STALKER EXTREME arrows. hope this helps good luck hunting jim