From my previous post, perhaps my intent didn't match interpretation.
When I say John was all over the place, it wasn't as much in a "Conspiracy" vein, or some odd agenda, but rather almost a David Lee Roth stream of consciousness that didn't require prompting, or even another party to reply.
Clearly an intelligent man, well-read, and opinionated. When I said "bonkers" I really meant that in an impressively madcap personality kind of way.
I have almost all of their catalog, and hold him in high respect.