I fear I raised the pivot 'hinge' point over on R&N without looking here. I will read in tonight - but just for the moment, I feel there is a case for the jack screw to be more or less where it is, but driving a beam in the centre of the two Stab sides.
The big questions are, would it resolve most of the problems (elevator issues I'll address tonight) . The beam does not have to be straight so that with the full down position the front end of such a beam would still be contained comfortably above the tapering tail section.
The argument being that the loads would be so much less that all these mechanisms would be down-sized.
The question is, why was it done the counter-intuitive way in the first place? I can't believe it was just to make it fit, there has to be a more fundamental reason. As I say, I'll read in tonight.