This simple visualization of the current state of the work shows that there is not much left without a flaw. The table of contents and the appendix (blue) are not considered when the percentages are calculated. Black is for pages with at least one improperly sourced copy; red is for pages with more than one.
I've just checked a few pages at random. They are, indeed, exceedingly close. Just some minor editing here and there, and not necessarily for the better.
I'm wondering if KTzG thought that this crazy quilt is how we do science. Or if he is perhaps suffering from an advanced version of cryptomnesia. Wikipedia quotes Macrae, C.N., Bodenhasen, G. V. & Calvini, G. (1999). Contexts of cryptomnesia: May the source be with you. Social Cognition, 17, 273–297:
Cryptomnesia is more likely to occur when the ability to properly monitor sources is impaired. For example, people are more likely to falsely claim ideas as their own when they were under high cognitive load at the time they first considered the idea.Sounds fitting. The saga continues.