RE: Shooting with both eyes
I can't. If you are left handed, you are generally left eye dominate. Right handed, you are generally right eye dominate. I am left haded, and shoot a pistol left haded, so I shoot those with both eyes open. But I shoot long guns and my bow right handed. If my left eye is open, my right eye will not concentrate correctly on the sights. I wish I could shoot with both eyes open, as it really helped when I started doing it with a pistol.