Having read a bunch of old threads, I have to admit to being even more confused than when I started on this topic. I just picked up a nice set of used Silver Volks at a very good price. They did have some cosmetic rash on two of the lips. Also my M3 is Melbourne Red, so I was thinking that a graphite grey would look nicer, and that I could have them clean up the rash at the same time. But I have seen a few people advise against powder coating them at all. Various Google searches have returned this mixed advice. So I thought I would ask if there are been any definitive word from Volks or people highly knowledgeable in this area. Thanks!