Quoted from BobLangelius:It's not that it doesn't actuate, it does, But the slight friction of the arm, on a rare occasion, stops the ball on the ramp. Am i understanding your reply correctly??
This is a problem with some of the switches.
Original cherry switches have a much lower force required than the newer Chinese ones.
Get a few from Bryan Kelly while he is making them up with diodes it's a great deal.
He has a continuous thread, just PM him.