I have been told by many people that you are suppose to shoot with both eyes open. But the local coach says that you have to shoot with one eye closed because if you don't, as your eyes get tired, the opposite eye (non-dominate eye) will try to take over your sight picture. Talking recurve here and not compound with magnified scopes. I was pretty sure that Coach Lee had said to use both eyes open. Let me hear your thoughts on the subject.