I read of an experience of how someone handled the elders when they came for a "visit", I can't find the post again and I will keep looking for it. But basically what the person did was...First kill the elders with kindness, have genuine concern about things YOU have noticed that the WT does....and just question the elders and say you are concerned about "X subject.." the person had a list of things and the elders couldn't answer the questions. Then as the elders were leaving the person then said "I have many more questions about "this" "this" and "this," next time you come can you explain it to me because I just don't understand.
The person used JWfacts to get the questions they asked of the elders. You could always do that. I will try to find that post.
G