Very nice summary, Dino! And your last paragraph very closely mirrors my view of the impact of the Munich events.
One thing to add - the "Munich trip" has long been blown out of proportion to become one of the great rock'n'roll myths. It's often written that Peter disappeared for a three-day acid binge and was never the same afterwards. As noted above, Peter went to the house in Munich only that one night, and in the company of one of the band's crew. Of course I wasn't there so I can only speculate on what may have happened at the house and if there really was any dramatic change in Peter's personality or behavior afterwards. From whhat I've read, he announced his decision to leave the band the following day, and as Dino mentions, that surely had an effect on how the other band members viewed the events.
Jeremy - if you're reading this thread, it would be great to have your input on what really happened