I just picked up an estate Peretti pipe on ebay. It looked pretty clean but had a funky sort of musty/dusty smell to it. I think it might have been the stem oxidation because that is what I smelled when rubbing the Magic Eraser on it (I was rubbing the stem with the eraser dry before I read that I should wet it). Anyway, after the Salt & Alcohol treatment to the bowl, the oxiclean and magic eraser treatment to the stem, several retorts with 91% rubbing alcohol through stem and bowl, and a bunch of pipe cleaners dipped in the same 91%, I think I've gotten rid of the smell. Does oxidation occur on the inside of the stem? Is there any other way to do a thorough cleaning of the inside of the stem?