Rich - 1st time I had them coated they turned brown/black on first firing and then flaked off there after. They just were not done at all correctly. Only issue so far with this current coating is a change to yellow and the coating is very strong and apparently durable so far. It is uniform in color although the collectors are still orange. I am good with this at this point - it looks good in person - check it out at MCACN!
