Quoted from knockerlover:
I'm hoping my stuff is in this next batch, 4 months is a long time for a game to be sitting around unplayable.
Unfortunately in my experience with various plating and even powdercoating services this is closer to the norm than the exception. Unless one of the TN guys has a part already done for a swap (a great service option by the way) your parts will always be subject to waiting for the next batch of your desired color, however many times it needs to go through before it is acceptable. Of course there are ways to get things done quicker but that would be substantially more money and what pinball person wants to do that.