Foil Body Motion?

I was looking at monofins today and came across the Finis Foil (which is inexpensive enough to just give it a try). The thing is - the advert talks about "The Foil Body Motion" as taught by Bob Gillette. I cant seem to find any reference to this technique outside of the sales materials for the monofin. Is this a real thing or merely sales propaganda? If real, can anyone point me to training or other reference materials? Bill