i have a high country extreme bow, 27 inch draw at 70 lbs. i can hit the kill zone at 30 yards but my grouping is off aabout 2 inches. my question is is there anyone who makes or has cams for my bow that will shorten the draw lwngth to 26 inches? a buddy has a matthews switch back and it is 26 in. i sot it three times and shot the knock off two arrows. i think this is my problem. when i draw my thumb is behind my ear. i shoot a true flight relaese that wraps around my wrist, this is the only release i could find to get the draw or hand position as close as i could. any help will be appreciated.