Is this in the context of TT or road bike position? Or both?

I ask because, in the pro road circuit, teams like Sky are looking for every marginal gain they can possibly achieve (including choice of skin-suit material for group TT vs individual TT races) yet I don't see any of them racing on short cranks. It seems inconceivable to me that they haven't looked at this in the context of road racing, if not the TT.

That aside, I love your angle here to generate another high traffic thread. "Your seat is too high" to be replaced with "Your crank is too long"? Bravo!