Made it in 7 years went in as a E-1. Definitely hit the books. Payed off in the long run. Dam air force takes forever to advance was stuck as a E-5 forever they would not take me as a E-6. Like a buddy of mine used to say "if your not the same rank twice you isn't ****". Retired as a e-7 at least. Prob would have been a 9 if I stayed.