Man you can’t win for losing wth this corvette. I’m not going to lie. I repaired the broken traces on the opto boards but I did not mess with any of the wiring for any of the race track when I had it. Just added new optos and tried to repair someone’s previous hack job to it. However if I recall correctly there were several old hacks throughout the game that had been fixed over time by various pinsiders including myself. Not to mention whoever had their hands in it overseas before it got to us. I wouldn’t rule out a wiring problem.