I am cross eye dominant. I am ambidextrous in most things though. I feel more comfortable batting, boxing, kicking southpaw, but I write and play guitar right handed. I have always been very comfortable shooting a long gun from either side, but I pretty much have mostly shot pistols right handed. When I discovered I was left eye dominant I began training myself to shoot with both eyes open. This is done by focusing on the target leaving your sights slightly out of focus. My pistol shooting immediately improved dramatically.