Hi Satan,
Just out of curiosity, what do you take into account for the takeoff time??
I was told about the wheels up->wheels up of 2 min by a colleague who was in the tower a few days before. Since then, I have started the stopwatch as the heavy gets airborne.
I ask because - Other day I was flying to PIK (No prizes for guessing how light I was). Take off clearance issued 1min7secs after heavy airborne.... I waited around a few seconds more for the <30sec takeoff roll....
When flying to LED in a 321 I would expect the clearance about that time, but PIK?