There is a local guy here who told me he cleans his entire shaft including the ferrule with a magic eraser, and then uses burnishing paper to smooth it back out. He finishes with a very light grit sandpaper. My question is wouldn't the chemicals in the Eraser cause damage to the wood? His shaft looked brand new and was as slick as any I have ever used. I am just curious as to the longevity of this technique??