I got my wpc89 driver this week. The quality was very impressive! Looks like new.
My only issue is LED Ghosting. I have a corvette with a rottendog driver that works good without ghosting usinh pinballbulbs.com bulbs. After swapping into the pinballbasement driver I had a significant amount of ghosting and double lights. Corvette is not suppose to be a ghosting game. Are you using a different spec on the transistors or ics?
Notice both right lanes and arrows are ghosted in the attached pic