I don't shoot with a peep sight in the string and have just shot with a kisser button for more than 25 years. The No Peep is kind of a replacement for a peep sight but it also will show if you're torquing the bow. It's kinda like a little prism that has a dot that is centered in a circle of reflected light, looks like a lunar eclipse when centered and it's very sensitive to your eye position at full draw. I wanted to make a bracket that would position the No Peep in-line with my sight pins and string so I could see it better than when I used the stock mounting bracket. The stock bracket positioned the No Peep inside my string/sight pins alignment plane and covered my sight level.

This one works much better for the way my sight is set up