All fixed! The problem was caused by two things. The 60 volts DC was sitting at 62 volts. Perhaps a previous owner wanted to brighten the displays? Turned back down via the pot R16 on the PS board to 60. It looked much better at that point but slight ghosting still evident. Power off, remove connectors A1-J2 and A1-J3. Pins in shells looked great. Scrubbed the back of the board at the finger connector headers with a clean green scotchbrite pad, wiped down with clean cloth. Plugged connectors and fired it up, perfection! Typical flaky system 1 connectors. You'll notice in this pic player 1 display looks sharper and brighter than the others. That's because I used a 9 volt battery and jumpers on the outer pins of the glass to rejuvenate it. I held the battery on for 10 seconds. I did this on all displays except the credit display but wanted to show the difference so just player 1 shown brightened here.