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thedoor said..Dcharlton said..
While intriguing, Windfoiling seems better overall, more efficient, less wind needed to get on foil, Reef Warriors did a comparison and found WWF to be better, I'll keep my Windfoil, but will definitely give the wing thing a try if presented the opportunity.
Although, I have not tried the wingding, and don't really have plans too, they are getting very close to matching our ability to get on the foil in light air.
It roughly comes down to weight/(wing or sail pump power per sec x foil area/lift)
Their upwind angles are very good too.
I strongly doubt the "less wind needed to get on a foil" part. That may be true for beginners, and perhaps older wings - the development is quite rapid. After 5 wing session, my wife now foils at least as consistent on her 4.2 F1 wing as I do on a 5.0. If she'd be using a sail, she'd also be on a 4.2. She has to be on a bigger foil (i84 so far instead of i76), but while she hates the larger foil in 15+ knots with a rig, she likes it with a wing. The weight of the wing is just ridiculous, even compared to a 4.2 m freestyle sail with the lightest 100% carbon components.
After a few years of trying to pump, my pumping still is a matter of luck. Change anything (sail, board, fin, foil), and the technique needs to be adjusted. I've only played around with the wind wing on shore, but pumping it seems 100% more intuitive. That's to be the same on the water, according to my wife. The wind range on the wing is much larger than for windsurfing, and larger than for freeride windfoiling. She's used the 4.2 in 13-25 knots already, and there's more room on both ends. With a rig, the comfort range for a 4.2 would probably be around 16-20 (with a wider range doable, but less fun). I've been quite skeptical of the wing in the past, but that has changed since seeing her and one other local guy on the wing.
Looks like it can be a lot of fun, too:
13-14 mph wind in the video with a 5.0.