@Machinebird
Take some time to understand the following document regarding post stall aerodynamics.
Comcast
Machinebird, the link is known and my statement concerning the effectiveness of the THS for ND is based on it. .
See my post No. 35 and PickyPerkins post No. 100 in this thread.
Another thought to relation of THS and wing:
In the post-stall the main wing produce some ANU lift, the tail produces some AND lift. Due to the more sophisticated design of the wing it could be possible that the wing produces more ANU lift than the THS could counter with AND lift. Remember, in normal operation the THS only produces ANU lift, therfore the camber is on the downside of the THS.
And lets look at the drag, which is working as a turning force around the lateral axis: The drag of the forward part of the fuselage and of the forward parts of the wings woking ANU night well be greater than the AND force by the fuselage aft of the wings and the THS.