I just heard a podcast on the weekend talking about the WOZ issue.  It was a known defect to the printing process in the early machines.

The answer to the owner who was the podcast host was "send us $500 for a new playfield and do the play field swap over yourself".  I'm sure they said it nicer than that, but the conclusion is the same.
 

...As a minimum JJP should have sent out a free playfield, but as it had just expired the two year warranty, that was the offer.  JJP doesn't seem to understand 'latent defect' laws.

Anyone can get the production wrong.  The test of a good company is how they deal with the issue.  I'm keen to see how Stern respond to TWD LE problem.  I'd amazed if they didn't send out a free playfield at their cost.

We are well advanced down that path. Joe from "Kids Just Wanna Have Fun" has seen TWD LE and he has already suggested several options for me - which have been VERY positive. That's a level of customer service that is exceptional. This issue has been moved up the chain - that is 100%.