So you have Paulson Classics? I didn't follow that part. If you have Classics, they say "Paulson Chips" on the mold, brother, you have Paulsons. Classics and all those home chips they made, are all awesome. NPS, Pharaoh's, CDIs, and the Classics! Sweet Paulsons goodness. Sure, they aren't
BTP or SBs I guess, but who cares about a circus tent or a surfboard on the label ?? Am I right, or am I right??
I've have owned and sold a set of Classics and I presently own 900 Pharaoh's. I've washed each one of them by hand. One by one...with the Dawn soap and toothbrush routine. Made them nice and clean. I did use Magic Eraser, but only for a few dirty chips.
You should not worry too much about the Magic Eraser. Use it gently and cut up small pieces of the foam so you can localize on a spot instead of doing the whole chip. That's how I use it. Don't just scrub aimlessly. Scrub a little, have a look, scrub a bit more. No need to grind the pad on the chip. I will agree the Magic Eraser does seem aggressive and I have transferred color to the sponge with some chips. It's rare, but it does happen, so I do believe that too much magic Eraser is a bad thing. For some chips, it seems only so much can be done..
Would love to see some pics of the set. Good luck with the cleaning..