Used Master Your CDC to make Staff - it worked great! Now, I'm ready for my 7-level.

My husband and I have both made our last two promotions using your study guides. (PDG GOLD)

I made SSgt my first time testing with the help of the PDG Central app last year. I only used this app to study the PDG and scored in the 70s on the PFE! (PDG Central app for Android)