I think a 60 is a bit more accepted. Jus my opinion, tho.

Agreed that the Sunray setup is cool, and that folks are trying to get too much angle out of them. Just because you CAN does not mean you SHOULD... those are massive parts, but when you turn that far, the leverage really adds up. You said "At a certain point a single u-joint stops trying to turn and just tries to break itself..." which is exactly right.

Randii