I put one on my then brand new '02 Patriot and I had trouble right away. I messed with it for quite a while trying different things and ended up dry firing the bow while watching the launcher come up and go down[X(] That's when I took it off and put on an old Bodoodle rest, tune it up and the bow shot very well!!!! I looked at the rest and like a light bulb going on,,, I thought, why do I think that the little return spring on the launcher arm can get the launcher arm out of the way before the fletching gets there??? I took it back and returned it a Cabelas ( good 'ole Cabelas) and have made my own rest since