My buddy shot this rest for 1 year in archery leauge and loved it! Then all of a sudden the next year he could'nt get his bow to shoot worth a damn, he took it back to the (so called pro shop) and they told him it was fine. So I talked him in to trying a muzzy zero effect (he shoots a legacy, so do I) he said he cannot believe the difference, everything about the muzzy is 100000000 times better! We tuned it in, It took only 15 minutes! So my suggestion is save your trap door for a paper weight and buy a Muzzy!!!! Muzzy Bad To The Bone!!!!!!!!!!!![8D][&:]