Garage Years
Do you have access to the traces of the autopilot's inputs prior to its loss to the crew? Just a question. (A comparison, an overlay, might help give some scale to PF's inputs?)
Is there a slight possibility that the PF may have been reacting to airframe positions, including ones he had created?
Mr. Optimistic
Could the Pitot #1 (Captain's) have been inop for the duration? If so, why?
TyroPicard
If so, then there is friction, perhaps fatal friction, in the cockpit? PNF's call for Captain's return, was that a call for his Authority as well as his skill? Was PNF too timid to overrule the PF? (perhaps?).......