Hi Thrillhouse
"open flipper problem" - in the snippet of schematics MarkG shows in post-3: I see a switch on the Ball-Index-Relay - this switch opens when You make some points and so the Ball-Index-Relay pulls-in and stays pulling and the switch is open --- does Your Ball-Index-Relay does this ?
"Ball-Count wont advance" - HowardR 's JPG in post-2 --- question: Does the Player-Unit ever moves ? IF (if, if) "NO" --- rather down in the JPG I see a switch on the Ball-Index-Relay --- it must be pulling so the switch is closed. Greetings Rolf