Thanks! I would say that you'll be fine starting now. Books 1-5 have been proofread by multiple people: I would consider those pretty much final (Book 6 is also near-final, having been proofread at least once). By the time you get through those, hopefully either I or someone else will have proofread the next Book or two. Also, I don't really think any more content will be getting added at this point; basically all that's left for Books 7-10 is fixing typos and making sure everything is arranged ideally. That said, if you really want to be sure everything is completely, 100% finalized before starting any of it, I'm not sure when that will be. Toatapio is working his way through Book 7, and I've been trying to read through Book 8 but haven't found the time to read much of it yet. I am planning on making a post when I'm ready to declare everything finalized, though, so if you Follow the topic for updates you'll know when that happens. Awesome! Thanks for responding.