... and we have a 3rd draft

Well, not quite. I still need to go through and create a version clean of all editing marks and grayed out deleted text. As expected I very nearly flew through Book 6, though some large edits were still necessary. All in all it was extremely beneficial to do the entire revision in under two weeks. With this speed everything was very fesh in my mind as I read through it, so that the smallest plot hole (I hope!) was able to be spotted. I feel, finally, that the story is finished. All that remains now is the final proofreading and grammarical fixes... unless of course one of my critics or editors spots a new plotty error!