There was somebody on a forum who had his series balls 'spray painted' with a 2 pack(IIRC) plastic stuff, it looked odd as it was brown in colour, but it was very tough and tolerant of a less than perfect start finish which was just the original grit blasted, pits and all. Pits were delt with by locally added extra 'paint' followed by flatting down. The 'paint' was used on stuff used off shore. That could well be a better bet than re-chroming.