Depower turning is a bit affected, but far less that what I experienced on other foil kites (Aurora, speed 2 , 2.5 , 3, 4 lotus, peak, homemade single skin); I 've nerver riden a psycho nor smart which were told to turn right when sheeted out.
I also found that contrary to the speed, in light winds, it flies well even sheeted-in, and when you sheet-out, it does not accelerate so much like the speed, so power generation is more due to sheeting-in than sheeting-out , a bit like a LEI (but not up to that level of course, just for explanation). It changes a bit the technique for light wind water start where I had the habit to fully depower the foil kite at the first phase of waterstart, let the kite accelerate before sheeting-in. With the Pulsion you can sheet-in a bit more from start, so starting getting-up sooner, but traction does not increase a lot during the waterstart.
Regarding Autozenith : it is not a real Autozenith like Peter lynn's Arc foils. If you let the bar go from the zenith, it will slowly go down up to the ground if you let it go (like Speed, Aurora, ect ...) BUT let me detail my feeling; with the Speed2 15m (or speed3 15m dlx similarly) in foil, I often had to quite fully sheet-out to avoid over-power during the ride in foil. But as soon as you sheet-out, the FS Speed had a tendancy to raise down its Leading Edge to the water. This was absolutely uncomfortable because:
- the kite accelerate with its self-weight acceleration, while you want less power at that moment
- the kite has more power because lowered in the wind window
- I had to pull on the upper pre-line to avoid crashing the kite, while it was very difficult to change its direction fully sheeted-out ... Hence I had to either take a rear pre-line (by crossing the arms
) or sheet-in a bit to gain turning response ( while I still wanted to get less power...)
... it was non-sense and uncofortable ads you can imagine.
In opposition, the Leading Edge of the Pulsion tends to go upward to the zenith when you depower, which automatically reduces power due to self-weight and upper in the window (which is in general what you are looking for when sheeting-out) . Off course if you prefer to keep a constant azimuth, this can be counterbalanced by slightly pulling a bit the down rear line, very easily, to keep same direction (you are not over power in this situation, hence no worry). So in a nutshell, it is a useful feature when you encounter a gust or want to decrease your speed. I do not know what explains this original upward tendancy, and if it is "on purpose" or not, but i loved that.
@ Corbett : I do not get your point, you reached my english skills limits ; don't want to raise any polemic, but just can report you that Concept'air is designing kites for decades (and , from what I know, Benoit designed the first closed-cell-foil-kite ever for marine application)
@ Foilholio: Yes, Smart open cell kite is an concept that was designed before the FS psycho, you can find some topics reporting this on canadian forums.
For the story, my initial "attraction" to the Pulsion was both the very light cloth , the limited AR for better agility (snowkite application in moutnains for me), and the idea that it could have the variable geometry; but in fact and after several prototypes of "smart marine", variable geometry was finally not Benoit's choice for Hydrofoil. My opinion is that it kills the performance (L/D ratio) when sheeted-out with variable geometry, which is a significant drawback on a hydrofoil as it will sit deeper in the wind window with uncomfortable pressure on your legs and poor speed/upwind ability. Smart marine seemed to be great for waves however.