"It is a quite a different matter to build a new fleet from scratch, where nobody has any experience of the aircraft. The C-17 initial cadre were experienced operators and were exposed to USAF ops for 3-months or so before returning to form a squadron. Moreover they did not have to set-up any basic conversion training, as that was going to remain with the USAF. The sqn itself ramped up gently to operate just 4-aircraft."
I think the J model and it's introduction flies in the face of most of what you have posted there old chap