(This post was updated on 10 August 2014.)
Believe it or not, the waist measurement is probably the easiest component of the PT test to max out. Why? Because the waist measurement is actually an overall measurement of your health and the USAF has set the bar pretty low. Also, improving your health (and dropping inches from your waist) is remarkably easy to do (trust me).
This is good news because the waist measurement also gives you the second largest block of points (up to 20 points). Generally, men have to have a waist circumference of 35 inches or less to get max points; women have to have 31.5 inches or less.