llondel,
"If you're dealing with an incident and have a high workload, the last thing you want is to have the mask suddenly drop down in front of you and obscure your vision. If your first sign of a problem is loss of cabin pressure then it might not matter, but if you're dealing with other issues and the cabin pressure reaches critical a few minutes into the event then you might not appreciate it."
Tell that to the Helios inquiry and the relatives.
DB
