I shoot right handed, left eye dominate. Actually if I concentrate, I can choose which eye is dominate in any of the test. Id say my eyes are pretty close to equal, however if Im trying to see something small, I find Im using my left eye. That being said, I shoot pretty well, but on occation I get some flyers or some not so good groups. The elevation generally is on, but my left/right is off. This seems to be attributed to my eyes switching back and fourth on dominance. I have done the slight wink with my left eye, and it helps sometimes. Closing my left altogether gets me some great shots, but cost me in low light and depth perception. I shoot 3 under and while I think Im just focusing on the target, I do see the arrow blurred in my vision. I have to believe that if it was under my dominate eye, it should be at least lined up left/right with what Im focusing on. I think its time to find a cheap lefty and give it a whirl.