Mike@MAP is awesome.
Unless you have a real good mustang shop local, the idea that a local on the dyno tune is better is silly. I've seen all the local tunes, and they are junk. A mail order tune with some logging is just as good or better. I rather have one of the above shops (MAP, Lund, AED, VMP) tune the car mail order with some logging than trust it to some local that happens to have a dyno. I rather have the car street tuned anyways. Car doesn't have the same load as it does on a dyno, so cars should always be logged/checked on the street after a dyno tune anyways to see if the extra load causes knock/lean conditions.