Fast forward a few months and I located a NOS playfield.

I could not resist the temptation so it was purchased..

The NOS playfield was drilled and dimpled, but a handful of the post holes (cliffy rubber type) were not drilled.  I have no idea why and I also noted the pics of another NOS playfield on IPDB was the same?

So old playfield full stripped and assisted to ensure the post holes are 100% in the same location