Newbie question here, but have searched the thread as best I can: I can see outright availability for CBR-MEL (QF, J) and MEL-HKG (CX, PE) and I am keen to book given I need to be on a specific flight (no Y availability on the QF leg, so I realise the whole itinerary will price at J rates - still cheaper than QFF). If I confirm and ticket in PE and waitlist for J, is there a fee to re-ticket in the higher class? Are there any other issues to be aware of - for example would my waitlist chances be better if I book the QF leg separately and the MEL-HKG leg is standalone?