@RicInOR made a post Proficiency that really had me thinking about my biggest weakness. My Eyes. Aside from a minor astigmatism, my eyes are in pretty decent shape. I'm right eye dominant and right handed. But I can't shoot both eyes open. I've tried. I get frustrated, and go back to single eye. At only 10 feet, with both eyes open, focusing on the front sight, things shift and I get all mixed up. Objects 10" right of center get shifted ontop of the bullseye and I start having a hard time. Does anyone have some suggestions on how I can train to overcome this eye shift?