The first sets of SLRs arrived with a piss-poor anodization. It was then decided Macabee would do cerakoting instead of anodized.
Many did not like this, as the price they paid was for an anodized (stronger finish) set. There was some time where it was unknown what the #### was happening, and I believe it was TNA that began the train on receiving bare receivers and having them anodized themselves.
So each retailer now is either a) outsourcing the anodizing, using Maccabees ####ty anodized, or receiving them from Macabee in cerakote