He is convinced that there is no way I will be able to prove that the WTS is not the true religion.
Would he read a book? I cant see how any witness can read Crisis of Conscience and still believe that the WTBTS are right. Dont go to his meeting, stick with saying your conscience wouldnt allow it, it'll hopefully provoke him to think more about WHY this is the case.
Best of luck. Let us know how you get on.
Paul.