Not saying fairfax is a bad idea or location (it's probably where most people are located), but I'd prefer to avoid fairfax due to the police presence and their targeting of modified cars. I never get hassled anywhere for my cars except ffx county, and that's with me driving by myself while obeying all traffic laws. A pack of modified cars will be sure to catch unwanted attention. I don't expect this to alter any decisions on where to do this though, just a thought.