Donch, I know nothing about the substantial Cloudhashing order, only that their order is being fulfilled with no special preference. Personally i'm not impressed with how they conduct themselves online, and I don't think they are a great deal for their customers. That's just my opinion. They were advertising as having a physical location in London right next to where I happened to work at the time, by Holborn Circus. They had a big red location marker on a Google maps screenshot stating, here is our office. I actually know that location personally, and that it's not a physical office address and called them on it. It's in their thread somewhere.

The six module/four module controller board thing is simply just a variance in board revision made at the factory. No rhyme, or reason to it, and it's purely pot luck if someone gets one. you can't stick more than 4 modules in the casing.