I'm very sad.
Someone just provided me with the proper chapter numbering for #sudomastery, but the book is in copyedit and it's too late to do this. But, for your edification, the Author's Preferred Numbering should be:
Worst of all, there's no other book where I could do this chapter numbering. You can spoof Monty Python in one book, but doing it inmultiple titles is just sad.
Unless I need a third edition, that is...