Yeah,isn`t it?Those wheels were what I thought were "beyond saving" when I bought them.I got bold and used scotchbrite with DeeZee cleaner and scrubbed away when they were unmounted.They cleaned up,but nowhere near what they should be.Now,after all this time and they are 95+% brought back.
This is the 5th wheel after my first attempt to bring them back...

After that I rubbed Mothers and/or other polishing cremes(different/better wheel)...

Then,after the Eagle1 etch and a light going over with "00" steel wool and rinse...