Those books help on H16s as well. H16s are far more maneuverable than many people want to admit, and knowing things like when a shift is big enough to use, how to approach another boat, etc. are just as important as in an Opti. Many H16 sailors mocked Bob Merrick until he figured out how to tack the boat, then blew them away using everything he knew about racing that he learned during his development years on monohulls.
But, what would you know about that, Todd? You gave up on the H16 and immediately shot to the podium in the F18s, right?

Mike
PS: Speed and Smarts is supposed to be a secret...