The Air Education and Training Command (AETC) conducted a proof of concept test of Commercial-Off-The-Shelf (COTS) PC flight simulators in undergraduate pilot training. Based on the successful employment of this technology in the Navy, the Air Force tested it's own version of the "Microflight Simulator" at Laughlin AFB TX. AETC compared 55 undergraduate pilot trainees who used Microflight to 209 students who did not. The students using Microflight achieved individual "Time-to-MIF" (Maneuver Item File) sooner and these same students' classes had an average of 33 percent less dispersion among their individual "Time-to-MIF" scores. This paper presents the study results and provides lessons learned and conclusions from the study that can be directly applied to implementation.