I was watching this Q & A by Peter Boghossian (autor of the book A Manual for Creating Atheists) on youtube:
https://www.youtube.com/watch?v=zksBMdcCzVU
Around 17:15 min, he explains that there are difficulty levels when it comes to religions in aplying these techniques. Jehovah's Witnesses, he follows, is the top difficulty level and the group he has the lowest rate of success. He says it would take an entire book dedicated to deconverting Jehovah's Witnesses and people have asked him to do so, but he does not feel qualified for that.
Please anyone check out his words.
Maybe our community could offer him some insights or we can share our knowledge between us in trying to apply these techniques on our fellow JWs.