Here is my take on it.
If I'm wrong; any comments on the proper way to do it, and I would be deeply grateful.
Cheers
Chris

Is there only one answer to this question? You bring up a good question, and now I'm curious. I'm guessing the block is shimmed, or maybe, there is some sort of locking mechanism on a lathe or fancy jig that can lock the block into whatever degree the maker wants.