"Both eyes are preferred for a killer, because you want to have awareness. But it is not an easy way to shoot, or train, or learn." I think you're entirely wro

"Both eyes are preferred for a killer, because you want to have awareness. But it is not an easy way to shoot, or train, or learn." I think you're entirely wrong, but the sport USPSA is vastly different from any Olympic style shooting you would seen. It's speed and hit factor (that is, the caliber of your gun as a TLDR). Different priorities than Olympic sharpshooting.