Just got back from Puerto Rico where we tested the latest inflatable from Wipika, the "Hydro", their medium aspect four line kite. We had 2 sizes 8.9 and 11.5 (equivalent to a 12 and a 15 Naish) and we mainly used the 11.5 except for a couple gustier days when we went out with the 8.9's.
Pretty standard, state of the art construction materials, once inflated the kite looks and feels quite solid. The first flight impression was one of a VERY stable kite, even when landing hard and over flying the kite we had no problem regainig immediate control, a very forgiving kite all together.
Water relaunch: no problem, thanks to the lower aspect the kite has a natural tendency to flip on its back. The first time I water relaunched the kite I hardly had to swim towards it even with small breaking waves pushing the kite around. It makes also life easier when using a wakeboard since you don't even need to get out of the bindings to water start this kite, it helps you gain confidence when learning with a wake or doing new manouvers, you just don't worry about crashing this kite that much so you can focus on your riding.
Speed: it is not a super fast kite (not like the Aero's or the Mach 1) but it's a very acceptable compromise between performance and ease of use.
The Hydro has no wing tip battens (which makes it for easier packing) and consequently offers only the traditional 2 line seettings at each wing tip (no turning speed adjusters). However in all conditions we experience (powered and depowered) the kite maintained it's shape nicely and when completely depowered it still responded well and remained quite stable.
In conclusion I really enjoy the kite, I think a lot of people will benefit from the ease of use this type of kite offers while the high performance seekers may want a faster kite like an airblast, boost, Mach 1 etc... it's also a perfect kite to take in waves and not worry too much about smaller surf(althought it is clear that no kite will survive or recover if caught in a big breaking set).
Range: I'm 160 lb (70 Kg) and can stay upwind with the 11.5 and a twin tip in about 10-12 knots. With a wakeboard I rode it up to 20-25 knots and felt really good but that was also the upper end of my range. The 8.9 needs about 15 knots to get going with my weight.
In conclusion: thumbs up for the Hydro. Easy, friendly and altoghether fun. The kite comes with a big volume pump and ok bag, have not tried the new Wipika bars as they are being distributed just now, in the US at least.