Coming from TW5 you'll really get a kick of how they do things down here. When you check in, look for the big projector with the excel sheet displayed. That's how they put you in a class (class up dates are the same for both squadrons). The guy who does it, Richard, is pretty reasonable. They randomly assign you, but if you want one squadron or another, ask him and he may be able to do it. They changed my squadron and class up date, which would have put me in VT-31, but since my wife was in the process of moving, I talked to him and he put me back in -35 with a later class up date.
Oh, and speaking of TW4, since you're looking for a place to live, request house hunting leave when you get here.
Btw, STRONG recommendations for VT-35 (where you'll fly the C-12). Just my opinion...