Mine is on location and were closed up so maybe someone else can check. I think your switch may be mounted upside down. That metal plate on the top of your switch is most likely keeping the blades from fully flexing and making proper contact. Make sure you dont have any cold solder joints on it, I would cut that slip connector off and solder it directly to the blade. Also your gap between contacts is way to big. When mine was giving me trouble I had to use a leaf switch adjuster from the top side of the playfield and left the gap very narrow, about 1/32" between the contacts. Trying to adjust it from the bottom of the playfield led to alot of profanity as I couldn't get the gap correct.