> MH: Is there a written source on all this?
> Harvey: Senior moment, don't remember, but
> I'd expect it in DeLong and similar books. Harvey,
Your explanation is as good as any I've read elsewhere. I think I still have a Frank Berto article in which he explains all this stuff. If I'm lucky, I be able to find it in my giant pile of cycling stuff. And if I do, I'll scan it and post it... somewhere.
But my recollection is that articles on this subject are not much more informative than your message. Just longer 9and with pictures).
Fred Rednor - Arlington, Virginia