Dave: Agreed
VORcity: "if your tetering pencil was a true teater joint (no arm) and no friction in the pin then the disc would not have to align itself with the axes at all, only offset hinges provide a throwing effect (centripital) on the blade."
- No because the teetering hinge has (even at no arm) a 'non-freely flapping' component if you incline it. So the free teetering spokes MUST still align themselves.
GP is a red herring (- just a useful term/concept.)