Lurker- one of us has to get a new name. I volunteer.
For some, the 607 thing is just a lot of incomprehesible numbers anyway. If it was dropped it would not be any big deal. For me though, when I read Randy Waters essay on Ray Franz researching the subject for the Aid book and being disappointed that there was little or no secular evidence to support 607- it was the start of the end for me.
Then I went and read the Aid book article on Chronology and it was obvious that Ray did what was stated in the essay- spent most of the type arguing against every line of evidence that the destruction of Jerusalem was in 586, and then cobbled together very little and very weak proof for 607. Then I took the Insight book and compared the Chronology article line by line and I saw that they eliminated most of his argumentation against the evidence for 586. The editing basically ignored the problem- something Ray could not do.
A lot of JW theology is based on 1914 (time of the end, appointment of FDS, worldwide preaching work, etc) If 607 is a forced doctrine then so is 1914... and it all fell apart for me after that.