Fly 380
I'm afraid your memory is at fault! All 1-11s had drop-down masks.
This was/is a certification requirement for flight above FL250. The maximum permitted FL350 was due to the max pressure diff. of 7.5 psi.
Should one make a (hardish) landing, the over-sensitive g-switches on the mask doors would operate, alloowing the rubber jungle to deploy. The general rule was, "if you dropped'em, you re-stowed 'em". Obviously your landings were pretty good!
Brilliant aircraft to fly, I agree, particulaly with the drooped l/e of the 500s allowing a straight climb to 350, even at max TOW!