Well, in my most humble of opinions the wing is not stalled, as there is no angle of attack. For the wing to be stalled it has to be past it's critical AOA and for the airflow to of separated from the surface. During hover it is at zero AOA therefore how could the airflow of separated from the surface of the wing? Unless of course you're letting it torque round quite quickly, then I would say there is every possibility the airflow has become detached.
Hows the wing not stalled in a hover? It's not getting any airflow over much of anything but the roots, and that's from prop wash. The wing at that airspeed would definatly NOT support the weight of the plane
Just because the airspeed of the model is below that required for the wing to support the model does not mean that the wing has to be stalled, not by any means. It's purely down to AOA.
Angus, waiting for some self proclaimed "aerodynamic expert" to try to put right my aerodynamic misnomers.