When I went from a 7'brace height and 34" axle to axle rig to a 6" brace height 32" axle to axle rig, I had to start using a kisser button again. My new rig packs more performance than my old one, but at the cost of forgiveness perhaps. Either way it seemed more sensitive and a kisser button solved that issue. A kisser button promotes good form and consistency which is important in archery.