It was studying the WT on the paralell accounts of Mat, Luke and Mark (24, 21,13) that got me thinking.
The study actually passed it all off as if the GB -Slave- had worked it all out for themselves. Yet their analysiswas plagiarised with out credit and can befound in Christendom's Bible commentaries.
That is when they changed the meaning of"when you see these things" to the timeof the Tribulation.
I immediately connected to the Greatest Man Book - Chapter 111 "In fact the end will occur within the lifetime of the people who see the fulfilment of all the things Jesus foretells!"and realised they HAD to change the Generation Teaching. Wasnt World WAr One the beginning of the sign - most of those who saw that were dead. It happened two years later.
The wind of change gradually became a Blizzard. By the end of the90s I wondered if it was worth taking note of any of the teachings the JW claim as unique to them. I first went on the net after buying the Encyclopedia Britannica, to look up the references it cites on the WT.
VERIFY VERIFY VERIFY I say and you will find that to the true half of every "half truth" the apostates tell, there is another true half to verify it, making one whole fact against the Witchtower.
The rest is history.
That is the best tack to take: "they have changed so many things, how do we know this new stuff is true?"
The changes are so obviously self-serving I fail to see how anybody can be taken in.