I have an upcoming trip YYZ-HKG-BKK in November via CX829 and have noted daily fully booked flights via expert flyer with 0s across all fare buckets - I am quite surprised that every flight is consistently full like this but I wonder if its due to only CX having RU overflight privileges? With that said does that mean it'll be likely that CX will be soliciting volunteers for VDB? If this is the case is there any chance of being offered a J upgrade to accept VDB (as a Y passenger) I am OWS via another carrier and this will be my first CX flight. Forgive my ignorance as well as I couldn't find any recent info on CX op up priority, would there be any chance as a OWS for a op up on a fully loaded Y flight?