Carphunter, I've gathered you have some problems with consistent grip, anchor, and bow arm/shoulder. The Duallys may not be the most forgiving bows ever built but, they are shooters. Cam synch is very important with them. That aside, my guess is your possible inconsistent grip. If I put more heel into the grip, my P40 will shoot high. If synch is moving continually, you may have a bad cable. Broken strands under the serving is a possibility. In all the shooting (alot) I've done with mine, I've re-synched cams 3 times. And twisted the string twice. But then I'm somewhat anal about these things on my Dually. There's no reason your bow shouldn't be able to set up to shoot, and shoot.