I have to say many of the USAF types were exceptionally difficult to work with - and simply would not listen to common sense. There were requirements for my engine system which may have made some sense 50 years ago, but were simply foolish for a commercially derived aircraft with modern FADEC engines - but when we tried to bring this up with the Air Force brass and point out there were better (and cheaper) ways to do it, the response was 'what part of mandatory don't you understand'. This sort of thing drove millions in unnecessary costs just in my area - and I seriously doubt I was exceptional in that regard.