One pin on my impact archery cosmic sight.I have it set at 20 and that pin works from just under my tree stand out to 30.Also the yardage adjustments are made with two simple thumbscrews on the side.Durring the season when I practice shoot(yardages from 10 to 60)I put a liquid paint mark on the back of the sight block,it gives you a pretty quick refference on how far the pin gap is+/- from the 20 yard mark.It took me too many years finally simplifi my shooting[:@]Heres some interesting stuff for those that are interestedScroll down and go to the Hunter Speed Chart. http://www.vitalbowgear.com/vertpin.cfm