Back to John's book, though. I'm curious if he will talk about how things functioned in the band. In the video interview with Pick, Pick gave a not very flattering picture of John's and David's musical abilities. As long as John did what he was told, things were ok. My impression is that John was a solid, reliable, useful "yes man", but also he that he accepted and was happy in that role. It will indeed be interesting to read this.
It's like the Nick Mason biography... He explained the Pink Floyd history from his own point of view, which is a very gentle and polite one but I can imagine a more exciting one if it was Roger Waters who speaks, lol.
The trouble is people often disagree on stuff, I remember Paul McCartney said he and Ringo would always remember stuff different, so Ringo's book on The Beatles would be completely different from Paul's. We'll never know who's right, and in the case of DS, given Mark's dominant presence in the band, it's kind of strange to read someone else's take. It's like Guy would write a biography of Mark's solo career, if you know what I mean. But again, in the absence of any official biography almost anything will do.