Perhaps getting some of the lighted nocks will help you track the arrow without moving the bow out of the way. The best way to fix your problem is to use a surprise release. Without the anticipation of the shot going off, you wont have the reaction time to be able to throw the arrow off nearly as much. Also, shoot lots of does if possible, then when a big buck steps out, you'll know in your head you have made the shot many times before.