GBSJG just made a comment that the Watchtower will feature the article on 'New Light' this weekend. What a perfect opportunity for a visiting brother to a congregation (or incognito apostate) to answer with some honest and thought provoking comments. Maybe:
"I find it interesting that the Watchtower criticises some religions for not changing their old doctrines and creeds, and other religions that do progressively change them for having had them wrong in the first place, and yet we seem to be doing the same ourselves."
OR
"The understanding of 1914 was changed to be the beginning of Jesus invisible presence rather than the date for Armageddon. That is an example of progressive light. But what I can't understand is how Rutherford's many years of preaching that millions now living would never die because the ressurection would come in 1925 was new light. That was just plain wrong. I want to believe, but that seems to prove that holy spirit does not direct the organisation".
What are some other comments worth making, and who has the guts to do it, I don't think it do yet.