As one last note on the Supe saga. After many hours of touch up on the playfield I decided I would try to clearcoat them with Dupont Automotive clear. I had them all ready to clear, cleaned, masked, good to go. I waited for a nice dry and not too hot or windy day in August and went for it in my driveway. I set up saw horses in the driveway and the garage.
I would spray the playfield then carry it back into the garage and shut the doors to keep the bugs from landing on the freshly laid clear. In my area we have a lot of flying insects in the summer, especially black flies and mosquitoes. A couple of times I blasted the spray gun in the air to clear the bugs away then turned and sprayed the clear and quickly carry the playfield back into the garage.
It would take just a few minutes and you could actually see the clear "flash" over which is basically the solvents evaporating. I would then carry it back out and spray the next coat. The first one I layed down 5 coats and it came out great.
I had a bunch of clear left in the gun so on the second playfield I put 14 coats of clear. I have read that was too much well after having done it and that it will cause problems, but with now 8 years of play time on it all is well. And it still looks pisser.