My experience with my OG is that it is VERY sensitive to grip. A couple of the staff shooters up here say the same thing. I really have to work to keep my grip consistant, butwhen it is, bingo. Now, I had some issue getting my TT to shoot paper really well. I went with a Bodoodle and it really dialed in. Arrow flight was visibly better, as well as on paper. This work was all done at my dealer's shop. He and I tried all types of different combinations. We both changed rests, arrows, releases, grip. The one cool thing was that with the Bodoodle rest, any combination of arrows, GT22's with a 50 grain tip, 7595 with a 125 gr. tip, and even some 2413's flew great out of this bow. I really was sold on that Bodoodle, the Pro-lite model. You might think about trying one out. It really made my tuning much easier, and the bow MUCH more forgiving.
JMAC