RE: 1 eye or 2
OCD- That's a tough way to shoot!! Are you saying you concentrate and have the pin in focus with the target out of focus? IMHO- I think that if you practice during this off season concentrating on the target and keeping it in focus while being aware of where the pin is you'll notice a big improvement in your shooting. I wouldn't get intothe habit of watching the arrow in flight either.
Dan