I use a cobra single pin slider and love it. I shoot to 30 yds with no problems. 15 yds is about a inch high and 30 yds may be a inch low but not enough to mess with. 35 yds I hold just below the back bone and 40 yds just above the back bone. But hte nice this is that when you do have to aim high like that the verticle pin makes it nice for keepin your arrow aligned left to right b/c you just put the post just behind the fron shoulder.