[the Mouse King]

Hey everyone. I am not as interested on bodybuilding as i am on improving my overall PFT (Physical Fitness Test) for the Marine Corps. I have just joined and have not gone to boot camp yet, but i will be next year, and i can maybe get promoted if i have a perfect score. A PFT consists of a three mile run, pull ups, and as many crunches as you can do in a two minute time period. my crunches and run are improving nicely, but i seem to have hit a wall where pull ups are concerned. I need at least twenty for a perfect score, and im at thirteen...