Spanners, it is a pity that we are not allowed to use the auto-start, or at the very least the sequential start that the CX -524's can do.
I still have a copy of the Flight International article where when HOP was still being used by Boeing for the flight testing the Boeing test pilots started two engines at once. Because the APU can.
When HOP arrived into CX and guys on the line tried starting two at a time an amazingly vitriolic Notice to Crew came out threatening the sack for anyone who was caught doing same. The particular manager who wrote the Notice has retired but his ilk remain, so even to make a curfew, or make a schedule, we still have to go through the ponderous 4-1-2-3 stuff, blocking up cul-de-sacs and taxiways.
Shame really.