why is this faster/better than if the leeward guy was laying on the leeward hull and the other guy moves his weight to the inside or possibly slightly leeward side? the way i see it, the hulls must displace the weight of the boat and crew. shouldn't the hulls sit the same in the water for any given speed and heeling angle regardless of position of crew and skipper (i.e. the center of gravity of the boat and crew remains at the same position).