Winston my friend as you see from the long list of well wishers and supporters you are not alone.
Your struggle and fight is one many on the forum has faced and won. Sometimes I feel like giving up, that maybe the fight to save my family is hopeless and not worth the effort. Then I think cheezes, I'd die for them tomorrow if need be but I'm throwing in the towel after several months of heartbreak. It took years to indoctrinate me and my family and patience is what's needed in my present situation and most likely yours as well.
It sure is hard not smack them upside their head when they look dumbfounded over basic teachings but an exjw elder shared with me the revelation that the elders are often scared...Can you believe it...scared of what they can't understand or explain which amounts to a hell of alot when it comes to WTBTS teachings. I hate it when people ask me things I don't know especially when in reality I should know it. That is the predicament they are placed in...I think your doing outstanding in your conversations with them.....theocratic warfare, question their questions and express your disbeliefs as doubts. I hoped for lights to turn on for the elders when I spoke to them as you mentioned but so far its been nada...unless they entertain ideas secretly which I'm sure most do.
I have found the bible to be the only book they will look into when I have met with them so it pays to be well prepared on a couple different topics. I'm not sure about taping them, I had thougfht about buying a digital recorder as they are silent record for hours. I think they record in MP3 format so it would make it easy to download as well.
I have taken notes from all the elders meeting so far...not during the meeting as I don't think they would go for that but after. Its not to late for you to do that either. Its a way to look back over the discussions and use that information when you meet again later.
Your doing great so far...
shotgun from the crucified by family class