Six-to-eight weeks certainly drags on, doesn't it?
Not that it's specific to Brian-et-al's line of enquiry, but it was interesting to note that an HC2 was in dock at a secret SW base recently having undergone a UFCM (undemanded flying-control movement, if my memory serves me well). Aircraft pitched (undemanded) in the cruise, did not initially respond to corrective movement then over-responded after a delay. As I say, not specific to this tale - but it's interesting to see these things happen. Happily, in this instance, there wasn't a mountain in front and there weren't 29 irreplaceable people wiped off the surface of the Earth.