I have been reading the forum and I see a lot of people in a lot of different categories get upgrades. Does anyone know how their upgrade system really works? I booked a cat 12 for the may 5 magic cruise, was just wondering if they upgrade the cat 12 people first or do they just upgrade everyone everywhere. I guess it is unlikely to go from a cat 12 to say a cat 8 when there may be people in a cat 10 that don't get any upgrade at all? Not too sure how this all works.