Folks,
I must get out my inflatable globe and a piece of string, Sydney/Melbourne/Brisbane -Perth-London is a long way off the great circle route to London.
I think I will be continuing my current practice (when I am paying a commercial fare --- which is now almost always) of via Singapore, Hong Kong or GuangZhou.
Tootle pip!!
PS: That's a rhetorical question, I know damned well where the GC from the east coast is, and it ain't that way.