If your nock is below square and it paper tunes that way, then your tiller needs to be adjusted.

That's often what happens when people try to shoot their bows with the limb bolts tightened down all the way, thinking that max poundage will give them max speed. Or if they use the silly myth that Mathews got started, that tiller is properly set by bottoming out the limb bolts and backing them off equally to the desired draw weight. Both those methods might work for some bows, but they can screw up an equal number of other bows. Looks like yours is one that gets screwed up.