Plummet said..Sure you wont be jumping high if your technique is wrong. But also you wont be jumping High if your kite is not powered or is over powered.
To use your wind range example. 16-40 knots on a 10m. There's no way you will jump super high on a 10m in 16 knots. No matter how good your technique is no matter how good your board is or the water conditions..... You simply wont jump high. The kite isn't powered enough Also if you are trying to hold your over powered 10m in 40 knots (which by the way I find hard to believe unless you are 100kg+) you will not jump as high as if you put up an 7 or 8m in the same conditions.
Summary:
Technique combined with correct kite (and board) selection for the conditions will give you max height.
You're absolutely right. No way to jump high with 10m in 16 knts. Yes, it's most fun to have 10m when it's blowing about 25 or so. It's well powered and still controlled with ease. But I was not talking about going high in 16 knots. Sorry, man, maybe I was not clear enough.
I was trying to say that feeling of being "well powered" is different for every single rider. And may be a beginner should not choose the moment for the jump basing on that feeling. Yes, he will jump, but if he keeps using the same "sweet point", he won't be moving higher, may be for years. Though it's much more important to learn, how to hold more power with his stance. To bring that sweet point to higher power zone on the scale. And that's my approach, when I learn my students to jump. I had some real good results with people, using my method, so I've decided to share it with those who's also struggling with getting higher.
About holding 10m in 38-40 knts, yes it's true. I'm 75 kg. Well, I'm talking about tropical wind, which is less consistent, may be somewhere in the North Sea it feels harder, but is still possible I'm sure. At least with a modern freeride kite like Rebel or Rally. If we ever meet on the spot, I'll show you) I have couple of friends, living in Australia, may be I'll visit him someday.
When you ride with 10m in 38 knts you don't have much fun. Your lines are tensioned so hard, that a well pumped up kite collapses, like you barely inflated it. When you send it to 12 it won't go, like it's floating in some kind of jelly, it is so overblown. You can't go upwind (on the shore, with your legs) or even stand - you've been lifted up. You can only ride.
I have some footage on that topic, but no one is standing with the meter, so you don't see the actual wind speed and may say, I'm a liar) But if you are serious, you can ask anyone in my facebook feed www.facebook.com/profile.php?id=100002142187754 and have lots of evidence from guys from different countries. Usually they have a lot of fun watching me and would joke at me like hell on a high wind day. Just like a lot of guys will do here in this thread.
Again, I'm not saying that it's "fun" or "good" or "everyone should do it". "Techniques + correct kite" - absolutely. Riding in 40 knts with a big kite is just a "side effect" of understanding how to deal with power. Having control over your "sweet point". Starting with real basics, which you don't even think about, when you usually want to jump.