That W480 looks tiny! And that S470 seems to be a larger S400 ? Interesting, both prototypes ? I haven't ridden the S400 yet, I assume it carves better than the straight ones ? (421/425 ?)
I have been riding my W800, initially with S421, then S425. On 91 mast and 111 mast.
I think it is a great wing for my 100kg – the do it all wing. The low end is pretty good, more so with the 425 over the 421. At the same time it feels fast, sporty and very efficient. Riding some ocean swell back into shore requires minimum kite power, it pumps really well.
One problem I see though is that the W800 wing tip is razor sharp and thin. If one were to fall onto this wing the injuries could be massive. Me and a mate were banging our hands lightly on our various wing tips in the garage the other day and the difference between this one and others (695, 558) was distinct. I wonder how much it would affect the performance if one were to blunt the wing tip a bit.
I cut my foot on the S483 once, 7 stitches! (and weeks off the water).
Falling over the edge off the board towards the foil has never been more dangerous
In that respect I like the 111 mast – foil seems to be a bit further away.