Oh, nuts. I know I mentioned to Ryan that I was adapting those rules (not copying, for whatever that's worth; there are some significant differences) from Unearthed Arcana, but I forgot to make sure it was in the section 15 when I proofread the document. I'll add that to the list of stuff to correct or change if I ever get the chance, but I don't think there's anything I can do right now but apologize.