Thanks everyone for your replies.
I think I read in one of Franz' books, I don't remember which one, where somewhere in the WT Society there was an unofficial kind of book where all their beliefs and teachings were cataloged and organized. It was just an internal way of keeping all their teachings straight - or straighter. But I think the story goes that when Knorr found out it that he had it destroyed. Now that the Old Guard are losing their memories and probably too old to do anything, I guess their teachings are best based on whatever the WT officially wrote in the magazines the last time, plus whatever anyone remembers.
Other organized religions have their articles of faith which everyone can read and understand up front. With JWs its all dependant on whatever came out at the last summer convention, or watchtower, whichever came lastest. I believed that it was just "new light". But I was fooled. The Bible is timeless.
Sometimes I think they just like to constantly keep spinning in order to keep their presses going. What other reason could there be???