freitasm: e Air NZ is known to have bumped passengers off flights to Australia to give priority to cargo. Things may get messy.
Really? Are you saying that a B777 that can fly all the way to Vancouver, can't carry a full load of passengers, bags and freight across the Tasman?
There is the possibility up to the islands, with long alternate requirements for bags and freight, then passengers, to be offloaded to carry more fuel. But that only really affects the A320s.