In theory it sound like a good deal,but for me I'm a little slowI like my single pin Impact archery cosmic.My bow shoots plenty fast enough to make a lethal hit on a whitetail from 15 to 25 yard's holding dead on.Out to 30-35 I hold just on the top of the back inline (verticaly)with the front shoulder.Works for me.Also I think the brain get's to know after a while the size of deer @ certain yards.