When it was time to mount find a place to mount the spacers to attach my new 2nd controller, I discover it's a defect one that is cleary thrown together in a hurry. I have mailed my retailer for a response :D
All the explainations are on the album on http://imgur.com/a/M1Uh4
The good news is that some guy on the sparkfun forum says i'm probably right on the wiring setup as long as the controllers can take the required 2.5A. These are rated for 2A but my retailer recommended me these. I have already ordered the Dagu board. When that arrives, I have other plans for these controllers. (Probably for eye/sensor array arms or grabbing mechanisms ?)
