Jeff, how much draft do unfaired SWBs get off each other? How about faired low or high racers? Is it as much of an effect as conventional bikes get off each other?
SWB bikes (more upright, similar to Lightning) create a decent draft, highracers/lowracers (more laid back) less so, and LWB bikes suffer since there's a bigger gap between bodies. Add fairings and the whole equation turns into spaghetti.
I heard a story once that Moulton-type bikes were banned from the TDF because their small wheels would allow very close drafting between riders. I'd love to see real data, though.