Over the years, I've come to realize that things that were really significant to me don't affect some JWs at all, whereas some things that didn't phase me in the slightest were the very things that caused others to head out the door.
A lot of JWs won't talk about 1914 or 1919 because they don't really care about that.
Because of its theological significance, they should care, but they don't.
They won't even discuss the 1975 fiasco because to them it's all ancient history even if they lived through it.
They are far more affected by their favorite issues, be it no trinity, no war, no flag salute, no politics, no consciousness after death, no hellfire, no blood, no collections at meetings, no crosses, preaching the good news of the kingdom door-to-door, the name Jehovah, Armageddon, enduring faithful to the end... whatever.
Some JWs believe it's "the truth" simply because that phrase is used over and over again in all the mags and meetings.
I believe that if we're going to help others to see TTATT, we need to listen a lot and find out and focus on what's really important to them rather than emphasizing the things that we think SHOULD be important to them.