well... this sounds like putting the pillowy flabby running gear of an American family car under a nice Italian sports car. But hey, I'm here to learn, and your suggestion is so
off from what I had in mind, that I'll give it a try. The NOWs. Not the Flow's. That's just too much
What I had in mind with stiffer bindings was, that they might compensate a bit for the lack of weight. Since there are limitations in the force I can apply (hey, I already gained 7lbs during the BBQ season
), I thought, that a stiffer more direct hi-back might help to optimize (I ride mostly with the knees/shins, not with ankles), whereas with a softer hi-back I loose Newtons that should reach the edge. Well, that's at least my idea of it
Have you ever tried Flow bindings, like properly tried them while they were adjusted to your boots specifically, and a model that fitted your style and power of riding?
I bet you would be surprised if not even shocked if you did.
Nivek did not suggest them for no reason.
You are looking for a binding that translates to power from your legs into your board, and Flow bindings do that very efficiently;
The steel cable that runs from the hiback into the baseplate, picks up the force from your legs especially in the carved heelside turns that you talk about, and pulls it directly into the baseplate and into the board. No hiback, heelcup or other parts that bend and twist and loose the energy that you put into it, as they would in most other bindings.
Same holds true for the 1-piece PowerStrap footstraps. They cover more of your boot, and especially the mid-foot area (where you tighten your shoelaces), to again translate all your power into the bindings without loss, and without a tight and cramped feel. (imagine a day without cold and sore feet!)
The new Active Strap technology (NASTY) opens and closes the footstraps a little automatically when you get in and out, so even if you like to ride tighter straps, its super easy to get in&out. And the LSR-buckles work and look exactly like 'normal' slap-ratchets, so you can still enter&exit through the straps just as easily, if you are on a steep hill or in deep pow.
And with the full-EVA and canted footbeds, you also have all the dampening you are looking for.
Check out the ISIS-AT, at $250 it sounds like it's in your budget too!