There shouldn't be any debate at all concerning the date of 607 BCE!
In 1890 the Watchtower endorsed the book by the Edgar's which stated that Jerusalem was destroyed in 588 BCE.
Then the Watchtower changed their mind and set 606 as the date.
Then the Watchtower changed their mind again and changed 606 to 607.
In-other-words, the Watchtower could not bring themselves to admit that they were wrong. Ask anyone with half a brain who they are going to believe! An organization that can not make up its mind or historical facts and scholars who know what they are talking about.
Is the Watchtower aware that Jehovah's Witnesses themselves promote and have for download the book called: Uncle Daniel's Bible Class? This 1890 book which plainly shows Zion's Watch Tower advertisements in the front of the book, and written by John & Morton Edgar plainly states that Jerusalem was destroyed in 588 BCE.
This book debunks 607 all together! And Jehovah's Witnesses are advertising it on their website! What does that tell you about so called "Unity" in their organization?
The date 607 has been destroyed so many times on this board that the subject of it has become old news.
If you want a copy of Uncle Daniel's Bible Class just send me a PM and where to send you a download link. No problem! The book is listed in Randy Watter's Watchtower Publications List. The book has been in the Internet Archives for years!