I have the Williams WGRS on my Bighorn and really like it. The peep helps me to shoot further distances. I have the .093 aperture, and also the ghost ring aperture. I looked at the XS ghost rings before I bought the williams sight, but I found the williams was cheaper and had the option of a ghost ring as well as traditional peep. The XS ghost does not have the same level of adjustability either if you look at its design. I uses screw up and down to adjust elevation and that means you may end up needing something in the middle of a revolution. Just a thought. Have not had any issues with the peep other than not really understanding how to use a peep at first. I kept trying to focus on the back and front sights like an open sight. With a peep you focus on the front sight and target and your eye will center up the rear. After I figured that you my accuracy got a much better.