This DVD set is being offered by Great Courses and CIA (no, not Gen. Petraeus's CIA, the real one with real sex). Anybody know of the instructional DVD or the instructor? Thumbs up? Down? Alternatively, anyone have a recommendation of a great instructional video? I have a bottomless passion for perfecting Technique, and an endless fascination with the subtleties: What to add; when to add it; after what? before what? in what size dice.... This site is Grrreat. Thanks to all.