Cosmo
My point being that on T/O the same upward bending is experienced as in cruise, and at maximum values, why an empty wing? That also presupposes less than full Fuel on T/O. On landing, wheels on can create a serious down moment for the wing, so empty is good, and since some length of time has elapsed in flight, less fuel to stray away from centered mass any way. Not trying to argue, I don't see the logic of empty wings on T/O. Is Airbus concerned about weight in the wings whilst parked? If that's the case, why put tanks in wings in the first place.