I spoke with my sister, she's been giving me great advice to stand firm. I've decided not to give in to mother's pleas any longer. I am only enabling her to continue to control me through this "last thing I am asking from you. Do it for me." That's the only reason I spoke with the first 2 elders.
The vicious cycle must end. I cannot give her hope of returning. All I can do is expose the WT for what it is, and be branded apostate by my mother, or make her reason and react. I wish I could give it time, but that would only be enabling her. Control isn't hers any longer.