Squawk7777,
Having met and spoken with Capt Georg Fongern a few times at IFALPA venues, I respect his words and his knowledge.
Having last year been involved in an incident where the cockpit (and cabin) of a B757 filled with smoke in 20-30 seconds (you have to see it to believe it)
I KNOW you want and have to get down fast. It was not an onboard fire, but engine related and we landed on one engine 12 minutes after the initial event.
Smoke removal of the cabin was not fully accomplished until on the ground, actually the smoke removal was found to have been hampered by an unrelated technical issue.