Yeah, I'm coming to a similar conclusion. The problem I'm having with my wife is that she has no confidence in her ability to think for herself. So if I present her with something that's clearly false doctrine, or something that's clearly a lie from the WTS, or whatever, she just says she must not understand it fully. She's in no way dumb, but she clearly thinks very little of herself. She turned out pretty well for being home-schooled through HS and having no education beyond that, but I think the biggest thing she lost was the oppurtunity to see that she's well above average in intelligence.
Now I'm thinking my strategy is to try and find things that I can "discover" innocently to make the case for losing faith in the WTS's decrees, ultimately allowing myself to view appostate websites with the motivation to "test everything" and then discover jwfacts in that path. At least she'll understand why I'm leaving and have greater difficulty ascribing improper motivation to my refusal to participate.