I am working on a project and need some advice soon if anyone can help.

Scenario is a motorised dish with a multi-lnb holder infront of the dish.
The triax mutliholder attaches to the dish arm in the middle meaning the main LNB will probably have to be placed to one side. When the motor turns the dish, this main LNB will probably be off each and every satellite except position 0 right?

Triax mutli holder:
_http://img189.imageshack.us/img189/2559/bn53egcgkkgrhqehdkequce.jpg

Can someone confirm my thought?
If I am correct in my thoughts, is there a suitable 20degrees multiholder that will work well with a triax dish/arm so an LNB will be properly centered?

Thanks