Don't let off your edge, until you land. If you let off, you lose momentumn, which is what carries you W2W.
Don't over exaggerate the extending of the legs... Simply stand tall, at the wake. Standing tall, or extending your knees, keeps your knees from absorbing the pop... If they're locked out, they won't absorb anything, which will boost you higher.
Also, try staying balanced 50/50 on your board. You'd be surprised at how much the little things matter... At least they do in my case.
Hope that helps.