Brake rotor centering

[WSSix]

Watching the video Donny posted, they reiterate that the working angles need to be the same between the two u-joints while showing the working angles at each end being fairly extreme. Which is more important? I can rotate the nose of the pinion up more easily than bringing the tail shaft of the transmission up. That would get my angles the same between the two joints but the angles would be more extreme. I'd be simply doing this as a test to see if it effects the vibration at all.

I swear I've done this before and it had no effect on the vibration. Then again, I swore my angles were good, too.

Also, if I were to nose the pinion down 3.5 degrees to match the tail shaft, causing the drive line to look like this \ _ /, wouldn't that cause the drive shaft to become unstable or bind?

Thanks everyone.