Departed after curfew once in SYD when it was a 777 trip.
A few things were in our favour.
Wind was favouring 16R ✔
Got taxi clearance at 2258L ✔
SMNC was jumping up and down a bit. That didn't help.
Things that can go wrong:
Taxi clearance after 2300L.
Terminal closed.
Customs, Quarantine staff gone home.
Using 34, 25, 07.
Duty free closed
Then finding rooms, min-rest, lost connections......
And finding a bay to use the next day may be an issue too.
halas