I find that I sometime shoot right if I lean my head too far right. I don't look at my arrow shaft to aim, but I do have it in my peripheral vision and use it for left/right alignment when shooting - maybe that's some kind of aiming, but.... If I lean my head to far right, then my right eye is no longer over the shaft which causes me to move the bow further right to think I'm on target. When this happens to me, I stop canting the bow temporarily and shoot more upright. then little by little, start canting and leaning my head again.