Yep totally confused now
What I was trying to do is go by the orientation of, what I think you referred to as, the N connector. The N connector has the rectangular piece like all the others I've seen. Orient it vertically for vertical etc. However, this dish had 4 screw holes that the feedhorn asssembly attached to. So I had no options for aligning the feedhorn. It would always be slightly off vertical or horizontal. But I figured since it came in a PtP package, it was moot point anyways? You'd just make sure the other dish was the same.