If the TOCs are all messed up its the fault of DP: They use headers everywhere they need a bigger font.
Sorry, we are talking past each other -- I have yet to see a PG epub or mobi file which even has a TOC -- its not a question of whether or not that TOC is any good. Here's what I mean: I take my epub or mobi reader software, I push the dedicated button on that software to take me to the TOC. Does pushing that button take me to the TOC in a PG epub or mobi file? No. Why not? The epub or mobi file doesn't actually contain a TOC. It may contain TEXT somewhere inside the doc that says "Table of Contents", but in an epub or mobi file that is not the same thing as actually having a TOC. In a conforming mobi or epub file the TOC is specified in the "spine" file, not in the text contents file. Again, am I missing something, or can you show me ANY automatically generated PG epub or mobi file where pushing the "TOC" button on my epub or mobi reader software actually takes me to the TOC?