That is so achingly familiar! I wonder as to the wisdom of airline Training Captains doing some of the stuff we used to do. The dreadful shaking in the stalls, the demonstrations to all new pilots the Dutch Roll characteristics (with somebody at the periscope station rear left side with periscope up like a U-boat captain observing the fin and tailplane waggling and shaking- really scary sight! No wonder the tail used to crack up and the poor screwjack got overstressed!
Talking about the periscope, you could see the tailplane and top of the engine cowlings through the upper periscope, and looking out through the electronics bay periscope was fascinating too. What an over-engineered aeroplane in places!