driveshaft angles

That's true, it does. What it does not show however, is how the suspension loads and changes the u joint working angles. Without that added into the equation, you cannot set the angle correctly. Every bit of this is covered in the MP chassis and suspension manual. I just don't get why some people (not you) want to say their methods are incorrect, because they are not. They're spot on.
Oldmanmopar posted up the MP section on driveshaft angles in another thread, and Still everyone had their way and disregarded the info. lol