@ quincemyles - I can certainly understand your caution and confusion. In all sincerity, like Searcher mentions, if you wish to continue attending meetings without any fellowship problems, then yes, please take the advice and cease questioning the elders. Sadly, the elders are not equipped spiritually to deal with the reality that the organization has implemented and continues to "go beyond what is written."
The elders, although perhaps having their own doubts, have to toe the line otherwise they themselves will find themselves relieved of their cherished elder position which the organization uses as a carrot.
However, if you really want to make these elders look like complete idiots. I can provide you with the following dialogue:
Considering the organization's record of setting and shedding "new light" and having to correct prophetic dates and seasons. Do the following scriptures apply to them Galatians 4:8-11; Acts 1:7; 1 Thessalonians 5:1, 2; and Deuteronomy 18:20-22? If no, why not?
And if by chance they make the claim that the organization has never said they speak for Jehovah as a prophet. Happily point them to the following articles:
w55 5/15 p. 304 par. 12 Jehovah's Channel of Communication
w64 2/1 p. 68 More Is Needed Than Bibles
w67 9/15 p. 556 par. 9 God's Spirit and Word - Divine provisions for Life
w72 4/1 p. 197 They Shall Know That a Prophet Was Among Them
w89 3/15 p. 21 Insight That Jehovah Has Given
And lastly, to put the nails in their coffin, cite them 2 Peter 1:21 and plainly state: "If the slave, while setting dates and speaking prophecies had actually been guided by holy spirit, they would have never been wrong."
If you wish to maintain your spirituality after you make the elders and anyone else look like the Pharisees, pray to God for guidance, I have no doubt he will sustain you through these very trying times.