I've bent the carbons over my leg
and rolled them, some want to jump
and roll to a certain position.
How they are bent at that moment is how
I would orient them to the bow...in other words,
put them into the bow as they first wish to bend.
Then the shaft won't argue with itself.
Don't really know if it all matters for typical hunting distances.
Do the spine variations show up at 20- 25 yards?
It may depend too on how much variation in static spine we're talking here -
some of the carbons are outright dodgy and should be driven out of town with a sharp wooden stick.