Flights to all Florida destinations are extremely busy right now, inc. MIA, TPA and MCO. So the MIA option as an alternative isn't good.

Those who risk being bumped are those who check in last so always do OLCI.

As for Op-Ups, wouldn't be counting on it as the premium cabins are pretty full too, often fuller than WT. And remember it's very unlikely to get a two cabin bump.

Mikey - your exams are far more important than enjoying champagne. Plenty of time for that when you start your working life.