You might try aiming better. [&:]

Really though, there are too many causes to guess our way through before hitting your problem. I' d start with the bow, assuming you made critical measurements when you got the bow tuned to start with. Rest height and centershot the same? Sight settings the same? Draw weight the same? Brace height and axle to axle length the same? Cam rotation the same?

Have you cleaned the cable guard and cable slide recently? You' d be suprized how much a gunked up cable guard can mess with your shooting.

When you eliminate any problems with the bow that' s when you know it' s got to be the loose nut that' s hooked to the back end of the release.