If you don't think this is a torque (ie shooter) issue and the arrow is 28" or less, then there is a couple things I can think of to check out.
First is timing of the dropzone, since I am not familiar with this bow, try having the rest come up late in the draw cycle, if possible. I know drop zones have a long cycle so it may not be possible.
Second, try checking for cam lean. You can try adding twists to the yoke on the top cam. Try adding two full twists to the left side (looking from the back of the bow) of the yoke. Shoot it through paper. If it gets worse, take the two twists back out and add two to the right side of the yoke and shoot through paper again.
Just something to try. I'm probably missing something but it's past my bedtime.