ORIGINAL: piper_chuck
A little of both.
The biggest hurdles seem to be the complete lack of feedback that you get from being in the plane and the one common to everyone, figuring out how to move the stick when the plane is coming toward you.
I always think of "t-i-t-s" when the planes is coming towards me:
Turn Into Turn Stupid
Seeing as t-i-t-s are mostly in a mans mind anyway, its real easy to remember. Its saved me more than a few times.