Seems like all the kiters on San Francisco Bay have accepted this new means of propulsion. The wings are much quicker and easier to rig than the kite or the windsurfer. They are much more maneuverable especially on waves. The size of the sails are between four and six meters about half the size of the kite sails. Photographed below is Johnny Heineken, two time World Kite-foiling champion. I think this will catch on around the world.