Im shooting an 06' Tribute set at 70#'s and as you guessed a drop zone drop away. I love the bow and the rest but for some strange reason about every 4th or 5th shot the string that actuates the rest (the one that is clamped to the cable) settles to the left of the slide and bumps or touches my fletching as the arrow leaves the bow causing the arrow tofish-tail a little. It corrects itself fairlyquickly but results in a shot that is about 3-4" off of where the rest of my group is. What can I do to correct this aggrevating problem. BTW its not the same arrow every time.

Thank you in advance.