The scarebus certainly does descend a bit earlier but Boeing widebodies don't
mmmmm let me see…
A QF 738 descends from .78 into 280 KIAS
Thats about 445 TAS increasing until .78 = 280 KIAS where upon the TAS is about 457 ishhh at FL330
A CX A330 descends from .82 into 300 KIAS
That's about 470 TAS increasing until .82 = 300 KIAS
where upon the TAS is about 482 ishhh at FL 320
So, the A330 is about 25 kts faster all the way down to 10,000' where apon they both do 250 KIAS. ( actually 32 kts faster at FL320 )
The later descent point of the 738 wouldn't offset the faster A330 in my opinion, we would still catch you up.
