If you want to go to AF go to the KPMP location. That location is the best location overall for them. They also have the best FSDO to work with. Miami will get the DPE's to AF for the initial check ride in about two or three weeks into your training. Yes you will pay anywhere between $4000-$5000 for both your CFI and CFII but it is worth it at that location. Make sure before you go to brush up on All of the PTS for each rating, Pilot's handbook of aeronautical knowledge, airplane flying handbook as well as there Instruement counterparts.
Make sure you at least have one FAA knowledge test finished before leaving for training. Two would be recomended. Also make sure you own all of the above mentioned books and bring them to AF. The book AF have you buy are basically copy and pastes from the FAA books, just use them, and then sell them to the next CFI class.