Just avoid games with the original 5v light boards. All of those games should have exhibited the issue by now. Around September of 2013 JJP switched to 7.5v unbuffered boards, then to 7.5 buffered boards, and then finally to 2.0.

There are tons of WOZ's out there with 7.5v boards that don't exhibit any issues. I've had my WOZ ECLE for just over 4 years, it has 7.5v boards, and I haven't had one board issue (knock on wood apron, lol).

Not sure if matters but I've had my WOZ, and all my pins, hooked up to APC surge protectors that are then plugged into an APC voltage regulator. Also, I use Wizards Mist and Shine spray on my playfield which is recommended by JJP to prevent static build up on playfields. Static buildup can cause light board issues in very dry environments. Its cheap insurance.

What's nice about the ECLE model if you can find one is it's the ultimate WOZ model. It's the only model of the game that features the beautiful wood apron and direct print cabinet.