"I am currently involved in deep research, so I am unable to give my answer at this time."
If asked what I am researching, I will offer no details. "It involves the Bible and WT references."
Beautifully put! You are quite sharp and have all your points laid out in front of you.
What I did was answered their questions with a question in order to make them think. "Has this organization ever made mistakes?", "Can Jehovah use anyone outside of his organization to fulfill his purpose?", "Wasn't Jesus Christ the only channel of communication?"...etc.
I spun their wheels for awhile.
Alligator Wisdom (aka Brother NOT Exerting Vigorously)
P.S. Keep us updated!