Just one out of interest - does anyone know what has more weighting when they are upgrading pax on long-haul flights; status? Flexi/saver? Class? For example, upgrading someone to J, do they take the gold pax in PE, or the plat pax in Y? I've been fortunate to have a few Y to PE upgrades AUS-USA as gold on saver tickets, and often wondered how it all works. I'm guessing it is probably just another one of those things we may never know!