Like i have said, i have been shooting with a keller for several years now. Not a single time have i ever had the sight stick. Not once. Not practicing or hunting. It's the last thing i worry about.

The earlier models of the Keller were noisy. The newer versions are much better. They still are not dead silent, but i can assure you that the deer i have killed with it on my bow did not hear it. Any time there is a moving part involved there will be some noise, but to me, the accuracy of the sight and the elimination of distance guessing in the heat of the moment outweighs what noise the sight makes. My bow is quick enough that most of the time the deer dont even realize an arrow went through them, let alone that a sound came from my sight.