Honestly I have been feeling the same way, definitely very frustrated. I feel like if I were a unit I would at least interview if not hire me. Active duty TSgt Flight Engineer with 750 hours on my airframe, I have my PPL, I have not amazing but decent scores on AFOQT/PCSM and GPA, already have a flight physical, and a TS clearance....yet not even an interview out of the 6 units i have applied to. I guess still keep at it, but im close to biting the bullet and submitting an AD application.