CX currently carries an SO on these AUS routes:
HKG - SYD - HKG
HKG - MEL - HKG
HKG - BNE - HKG
HKG - BNE - CNS - HKG
HKG - ADL - MEL(px) - HKG
These are the ones i've done. No SO on the Perth route as it's not long enough.
SO operates HKG - ADL, then sits in the back (px) to MEL where he/she overnights before operating back to HKG direct from MEL.
WP