You need to go into solenoid test mode and test the bat and see if the vibrations are causing spurious switch closures. It's one thing for them to "idle" or sit correctly when nothing is going on, but they also need to be adjusted such that vibrations from the bat and pitch mechs aren't causing issues.

You can either do this with a meter on the switch edges and listen for tones, or you can go into switch test and manually actuate the bat coil with a decent bit of force and see if the vibrations cause switch closures.

Fun game! Hope you get it back to solid working order soon!
-- Jimmy