C903, thanks for the compliment, but I'm not an expert. I have big game hunted for 32 years and have drawn on hundreds of animals, so I have a lot of experience in different situations. I know what I can see clearly and what I can't. Just to clarify - I haven't shot hundreds of animals. I pass on many each year, but I frequently draw on them and pretend I'm going to shoot. It gives me valuble practice in deciding when to take a shoot and where to "stop" a deer. I also get to practice drawing without being seen. I never do this on does and I always try to do it unnoticed.

As for when I shoot with a peep. I only shoot with one pin with an odd shaped pin guard, so the pin is all that gets centered. If I had a round pin guard, I'd center the guard to make it a bit easier. I have to squint with my left eye to avoid seeing double so light is decreased a bit further for me. If you have a real consistant anchor, a peep is not needed. The less consistant your anchor, the more valuble the peep will become.