There are some GTs you get in the States with the required "F" stamp, all newer Luxe are factory stamped with the "F" but it is not a true German "F" stamp because it doesn't have a couple required pieces. Also another thing you may get in trouble for is a non European tank/Dual rated tank, your tank also must have the PI symbol. You should also look into getting a tank that has that on it. Anyway there are plenty of teams here, as far as US teams I know of 2 Armed Force and Legion. AF is spread out across Germany and Legion is a centrally located team to the KMC area. Hit me or Mike up for info about AF and Doc (xdaspot) about Legion.