I just tried my new wing sail , i can tell you, this is the true wind machine with no limits, very smooth ,and float-able! Broke up my personal speed record, and looking for much more.
Can't put more pictures and videos yet,(have to wait 24 hours after reg) but check back.
This is totally new wind gear, one in the world, full double surface wing , reversible profile, and it rides very smooth, fast and sturdy.