This guy is not a fast burner either. Made Lt Col in May 03 from FY01, when they were promoting like crazy prior to the kickoff of the war.
http://arpc.afrc.af.mil/promotions/officer/ltc/05_03%20USAFR%20Line%20and%20Health%20Mandatory%20Select%20List.htm
Promotions are generally slower in the Reserves, so actually he may have been a bit of a fast burner. He'd have only been in less than 20 years. But it depends on how long he was active duty, where promotions are faster.