Hmmm, interesting, apparently absolutely no consensus about what will work here, or in general
With my big wings 800 and 1200 cm2, I have never experienced the foil seeking to "lift" out of the water, not at higher speed nor when dropping down a waveface (but havent used both in really big waves, only bigger waves, so can not say if different...)
Whereas some of you experience being lifted out of the water you write?
Very odd this difference in experience, and maybe we should start here, to find out WHY we experience this so differently?
Is it because some of you got a wing/trim that require more front foot pressure at higher speeds maybe, where others are neutral?
Or is it because some ride at insanely higher speeds than others, thus our experiences dont match each other really?
Or is it because ones current wing, no matter what size, accelerates down the wavefaces where you often have the kite high, thus it will be the KITE that lifts you out of the water, not the foil?
If we can not find the reason for above totally opposite experiences, I would say it will be impossible to guide anyone to the choice of wing for bigger and faster waves
Must say I still dont get it, every full sized or RC glider can be trimmed to be neutral at any speed (meaning it wont lift "up"), no matter how high/fast you go (nor how powered if motor), and the same goes for a hydrofoil.
The only difference will be a big and/or very cambered wing will have a lot more drag thus not be able to ride/fly as fast, but not more lift at higher speeds.
This is the same with hydrofoils in my experience
Dont understand what you mean by "lift push" as opposed to "gravitational drop" - whats the diffence???
Might be wrong, but I see and feel the wave acting the very same way to surface boards as well as hydrofoils, the major difference being the foil accelerates so fast that you can get kite overpowered extremely fast, especially if too fast wings where it gets even worse - this is one of the advantages of the big surf wings actually, they are easier to control as they dont accelerate to the impossible.