Interesting and thoughtful summary, TMS. I remember the rules around DFing being relaxed in the '70s, but I hadn't really noticed a general sense of freedom during that time. I had moved to Central America to pioneer in 1975, so my attention was focused elsewhere. So I appreciate your perspective now looking back.
I recall when the elder arrangement came in. It was quite traumatic at our hall for the elderly cong. overseer who had been "top dog". He was a kind, loving man who was actually pushed to the side once others were appointed as elders. I do recall how excited I was to have the Aid to Bible Understanding, as I loved research and was fascinated by all the historical detail. I remember that the '69 summer conventions (we went to Vancouver) did seem to usher in a bit of a new era. Although I don't recall a talk about not counting time, your comments in that regard do twig some vague memories.
Ultimate Axiom - my brother and I had a Honda 50. What a hoot! Can't imagine going on any kind of a long trip on it. To me it always felt like riding a bicycle in the middle of traffic.