Of course as soon as I notice the pattern from books 2 & 3, book 4 doesn't follow it.
What was expected, though, was the dramatic reduction in surgery needed during the revision. I'm keeping a little "todo" log of things I need to keep my eye on while reading and revising. There's only one major plot-hole left to fill, a list of three topics I need to check for consistancy throughout the rest of the story, and six topics which I need to better explain, add more information on, or provide a reference to somewhere. I expect smooth sailing, except for that plot hole... which may be tricky to fill.