Question about 1717 and "Neu" licensing

[simplechamp]

On another forum people were moaning a bit about how the new 1717 wasn't listed as an official "Neu-Castle" motor, and what that meant. I told them that I had no doubt that the quality was just as good as any other Castle or Neu-Castle product, but not everyone felt the same way. From the outside (at least in pictures) they seem to look identical in design, which got me a bit curious.

So anyone know what the deal is? Is something changed about the design so that it's solely a Castle product and not licensed with the Neu brand? Again, I'm in no way questioning the integrity/quality of the 1717, Castle, or Neu, and would buy it in a heartbeat if I had the money and proper application for it. Just wanted to see why the 1717 was listed differently from the others.