@Raff, it's better if you bend the end of the switch blade that protrudes into the kickout hole, so the ball doesn't get scratched or pitted by the raw edge of the blade. Check out the photos in one of my recent postings to see what I mean:
https://pinside.com/pinball/forum/topic/gottlieb-72-kicker-not-kicking-enough#post-6075058
- TimMe