Invoiced the rest of you for invoicing. Some people didn't have a PCB at all, so I've added 1 on at the original cost. Let me know if something is incorrect (please don't pay if it is).
Regarding the color difference, the factory have said it's within their suppliers limits. The main points were that the piece thickness affects the duration in the anodizing baths, and beacuse it's all manual, it leads to instability of the results. They also mentioned it's to do with the aluminum batch quality, so different batches can yield different results.
Apologies for not shipping the above last week, something happened Monday night that I've been trying to overcome.
Anyway, I'll be packing the rest over the weekend and keep you all posted.