Got replies from 2 technical reviewers (sort of). There's an out of office auto-reply that lists today as the date he's getting back from the one whose business card lists the title "Evil Genius Coffee Scientist". The other reply says she'll look at it over the weekend because she doesn't want it to influence the coffee roasting manual she's writing. I've agreed to review her book when she's done with it and am looking forward to seeing that.