1.- JW are not allowed to read the internet or any book that comes from outside sources
2.- Even if that changed any information that attacks the WT is automatically dismissed
3.- They can not think by themselves.
4.- They will follow everything the GB says because that comes from God.
Those are facts. In order for a good standing JW to have doubts and start looking for information we need to break at least one of the above mentioned items. So now lets reverse engineer it
1. Present information in places where JW can read it. Mass Media, News Papers, Schools boards, libraries, or any other place where JW go and tha they can feel ok reading.
2.- Information must not attack the WT rather has to be presented in apositive way. Allowing the reader to discredit the WT himself.
3.- Instead of presenting facts where the reader reasons the information must force the reader to question himself. Questioning leads to thinking.
4.- Enuf information must be presented discrediting the GB. Maybe Scandals, Out of court settlements. Bad desicions of the WT. Things that question the holliness of the GB.
Maybe I am missing more points but thats what Ive discovered by trial and error. I have helped 3 of my family members out plus my two kids but ive failed with at least 6 :-( but I didnt know by then.