There is also a small contribution from the increased drag due to the deployed flaps and for lack of better terminology, the location of the added drag vector relative to the vertical location of the C.G. In other words added drag below the CG will increase the nose down pitching moment, and increased drag above the C.G. will reduce the nose down pitching moment. This component of the moment would be small relative to the added camber and the longitudinal location of the C.G.