I finished Cameron's book recently, too, CHG, but have no intention of using what I learned in a direct attack because, as Cameron himself points out, it won't work. The tactic of feigning interest, posing as a student for an unsuspecting JW teacher, won't work for me because I have not hidden the fact that I am atheist and my JW family members know it, and as a consequence they never, never discuss religious or spiritual matters with me. When an outside event (like Harold Camping's prophesy, for example) presents a segway for me to open the subject, it is never taken up, always greeted by silence. I will, however, take any opportunity that presents itself by any JW who is sufficiently confident in the strength of his faith in the Watchtower to take me on, recognising that cognitive dissonance will most likely prevail.
I've just started reading Crisis of Conscience. It's a bit of a tome, as you know, and also a bit of a slog so far so I expect it will be awhile before I get through it.