At the time the Evolution?Creation book came out in the 80s, I had already read some science books on evolution. I knew some of the qoutes were misrepresented, deliberately, and later books like "Is there a God who cares?" deliberately distorted information about earths early atmosphere.
Other doctrinal changes also shook my confidence in Gods Mouthpiece, and conflicts with scripture, and the 1935 date for ending the heavenly calling. On top of that I was on the receiving end of much unkindess and vicious gossip.
That was my wake up call.
Exitting took longer as evidence of the lies and bully boy tactics built up, until I had no reverence or respect for this self appointed prophet/liar.
It was the Generation Witchtower of 1995 that made me queasy for a fortnight, that when the dying really started.
HB