I have to agree with the other that say they don't make a differance and yes,I've owned the savage.If you bend at the waist and shoot a relatively fast bow,they offer no real advantage.My bow sotts 294fps.I sight dead on at about 26 yards and I'm about an inch high at 18 yards and a hair low at 30.When I shoot from 20 feet in the air,there is absoluely no differance in point of impact.