I am with Ronnie. I'd try this for sure, but I am a surfer-kiter-kitefoiler who has now invested a year in learning to SUP foil. So yes, a niche within a niche, but for what I do, this presents fun possibilities. My big wing can ride the smallest of swells, barely even noticable as a wave -- and riders better than me can pump seemingly endlessly in flat water. So with even a tiny bit of wind power added, seems to me you could have an endless downwinder in light winds, surf the swells with the wind luffed, then engage it when you need a boost. That sounds fun to me, and fun is what we're here for.
SUP/surf foil downwinders are a thing that people focus on -- though not me yet, as when it's windy, I am kiting. From what I've read, it's very hard work, unless you have a tow, have to paddle your a** off to get enough speed to catch wind swells. So, adding wind power seems much more civilized. And without the bulky logistical challenges of mast/boom/fixed sail and also without 300 feet of kite lines and an underpowered kite that needs to be endlessly looped, rather than focusing on surfing the waves.
It's interesting how slingshot posted the first video a month ago, as a wing designed 10 years ago now resurfacing -- with the addition of foils being the magic ingredient. Then all of a sudden 3-4 other brands introduce the same thing, within weeks. It's almost like there's a factory in China pumping these out.
Anyways, I am intrigued, not even close to considering buying one though. I am awaiting the magic PM offering to sponsor my use in return for rad pimping online. Or a cheap used one from bored early adopter. Or ye olde alibaba back-of-the-truck sale. Actually what I may do is play around with my 3m prodigy, see if I can adapt it to be usable, give it a try on some long mellow summer thermal day. If it works, I'll bring it to Sp Banks for you to try Slappy.