if you are putting arrows in group the size of a 50 cent peice, don't go "F" with itthen!! Leave it!! I know from trial and error myself. I got my new Ally shooting damn good, I ain't messing with nothing. The way I see it, if I can hit the vitals every time, then Im good, I like tight groups, but hitting the vitals every shot is far more important to me, I have shot the new bow at least 50 shots, and from 8-26 yds, I have not missed the vitals one time. Good enough for me, Im no competition shooter and don't plan to be. Im a bowhunter, and you don't get too many chances to group arrows at a live deer!!! make itr count with the first shot.