Guys, have a look at a windsurf sail.
It's only as thick as heavy fabric for most of the chord apart from the fromt where the mast is accommodated in a tapering sleeve to help reduce turbulence. And virtually all the camber is oriented towards the front when the most lift and less speed is required (ie: in light wind or 'tacking' upwind).
Race sailors will actually trim this effect out on the water, as they alter their course. So that when they want best speed, they will flatten out the camber by tightening the 'outhaul', that stretches the sail out more and shifts the 'belly' of the foil rearwards.
Hmm, adjustable wings? Oh yes, morphing wing, seen that somewhere. How about genetics? Just grow wings in a bucket.
Windsurf sail adjustment video
don't watch the whole thing, you'll get bored, I did. But check out the shape near the mast, all the camber appears to be right up front. Though it will shift somewhat as the guy does the 'outhaul' bit. And you can see that he has further to pull it as the wind speed increases. That flattens the foil.