The article on case settings is first class. I have been using them for several years and I am quite comfortable with them but I remember when I first tried to use them it was a different matter. I recently had to try to explain them to a member of my camera club. I wish I'd had this article to hand.
Very well done.
BTW on your chart on page 48 there is an error. 1Ds Mk III, do you know something we don't? I suspect that it should be 5D MkIII and should be marked as Case settings and not AI Servo.