Purchased CPO c7 s6 sepang blue and the stock 20" silver wheels have had some work done(from curb rash) prior to my ownership and the paint is not done well and blended poorly and is flaking off or I am able to scrape off with my finger very easily...all 4 wheels are affected. So i am in talk with dealer and finally they are "looking into" re-doing it, but my question/worry is that I don't want this flaking happening again so I prefer to not let them re-do it....so is powdercoating the only way to go to get back to OEM? How does the hyper silver process work? I would like to keep hyper silver color and get back to OEM? Any thoughts/suggestions/assistance on how this works....many thanks.