I've got a Bally Sea Ray that has an issue with the 100 point scoring. On Player 1, the reel will machine gun a little now and then, scoring sometimes 5 or 6 times what it should. Sometimes it works fine. On Player 2, it will almost always machine gun, and to a much greater degree, often 10 or more times what it should.

When starting a game, everything resets as it should and all other scoring works fine. I took a look at, and cleaned, the 100 point relay switches and it looks OK to me, as do the zero and 9 point switches on the reels. Any other thoughts come to mind before I try and replace the entire 100 point relay and switch stack?

As a follow up, this turned out to be EOS switches on the 100 point reels that were opening too late. I adjusted them to the point where they just clicked to the next digit as the switch opened and that did the trick.