I tried to use a kisser button when I first got a bow 15 years ago. I must not have used it right because it hurt like hell. I shot it once then ran into the club bathroom to make sure I still had a lip left. I looked in the mirror and it swelled a little but no blood. Took it off and just use a peep sight now. As long as you use it correctly you'll anchor the bow at the same point every time. No need for the kisser. Everybody I talked to laughed and said I must have done something wrong cause they use it all the time and never had anything like that happen. I explain that it's like trying to clean a horse's hooves for the first time and getting kicked in the head. Yes I did something wrong BUT I'm still never going to try it again. Once was enough.