I've started to have a problem where a ball goes into mission start scoop and instead of ending up at the left popper, it ends up in the right gun. Happens maybe 1 out of 10-15 balls. So once that happens the game just goes into ball search but doesn't kick it out of the right gun. nothing looks wrong in the subway. Tested all the switches and coils. Everything seems to work fine. Game is level. Anybody seen this before?

Thanks EEE! That diverter does have a little play, but doesn't seem like the problem as it doesn't stick into the subway (isn't even close) when open, and does seem to close perfectly. But maybe the play is problem. I'll look closer at that diverter.

All the optos are working great. The game does start missions correctly during game play. It is a pretty clean game as it was completely disassembled a couple years ago and cleaned. Only a few hundred games since then. I did a lot of testing in switch test already. it will go to the R gun in switch test occasionally. So it really seems like it is just the ball wanting to go down that path occasionally and not the diverter. I guess I need to try and get a movie with my phone to figure it out.

Hey Sam! Those video's are great. Very nice work. I think my issue is really just a bad solder joint. Not sure why I got a ball in the right gun a couple times. Now that isn't repeating, and I haven't been able to play the game for a while to test it out again.