Do I understand correctly that you're using 30023 for the individual pages/chapters/chunks of a book? If so pls consider using a different kind number. It would suck for blog clients if they had to deal with all these book fragments. If they want to support it they should be able to opt-in and not be forced.
Discussion
We also have kind 30041. I'm publishing under 30041, but everyone is free to publish as articles under 30023, to make sure that they are displayed and in case they aren't tech-savvy enough to deal with the current upload script (most people won't be).
Same way people insisted upon writing looooong kind 01 notes, and are only moving to 30023, now that more clients have implemented the event.
The publishing will continue until the clients improve.