I'm guessing that some of you have undertaken long-distance moves before, and have maybe hired professional movers. The only ever movers I've hired were for an in-town move and the whole thing took less than 4 hours. This time I'm moving 1200 miles away, with a bunch of furniture, and hired full-service movers (they do the trucking too).

My question is: how much do I tip two guys who will load my stuff into the truck in MI, drive that truck non-stop down to FL, and then unload my stuff into the new house? That's almost 36 hours of non-stop work for them (they sleep in shifts in their trailer cabin). Normally I'd tip around 10% for something like this, but that would make it a $450 tip! But maybe that's just what it should be... Advice appreciated.