Ah ,the age old question of
"Who left that heap on the centre consol?"

Propax 're cabin altitude catching up ambient
 

We flew three pilots on the gripper and it was P3s job to fiddle the cabin rate of descent.
It was generally only a problem going into Glasgow and Edinburgh because Scottish didn't talk enough with London and separation was mainly on reporting points or eyeball if you were lucky then it was a dirty dive with air brakes, reverse and iirc 320 knots although I might be wrong as vne was 365.
The other place was Gib as the Spanish were playing bully boys and we had to clear their airspace before we got descent in the open FIR.
The worst idiot was a know all manager nicknamed Batman who would throttle back number two after reverse was applied until the cabin started climbing (depressurising) so that he could loose height even more quickly. Bergerie will know who as he was judged as a cowboy when he joined long haul as BA was formed.
legally we were limited to max 1,000 fpm on the cabin and normally it would descend at less than 500fpm because of the danger of bursting pax eardrums.
With Batman we overtook the cabin despite descending it at 1,300fpm whereby the dial suddenly indicated a surge, our eardrums sensed it, Sir turned around startled and demanded what had happened.
Being a SO I couldn't tell him what I thought.
Slammed it in as per normal.
Happy effing days.