GM: They almost don't matter anymore. Even upwind, unless you're sailing in 2 knots of wind, you're always trying to generate a bigger fraction of lift off the daggerboards. When we first started with ETNZ, the only tools we really had that were highly developed were all based on monohulls. It took about 3 or 4 months before the CFD tools got sophisticated enough to start accounting for daggerboard lift because it's a very interesting mathematical problem to analyze a hull that goes from fully immersed in displacement mode to flying in the air. The whole drag curve tradeoff with the size of the foils, the position of the foils, angle of the cant—all that had to be developed. A big matrix of hull shapes was generated, and we looked at every boat that was relevant in the last 3 or 4 years, whether it was an A Cat, a F18 or F20, anything in that genre, and ran it through the CFD. In the end, from the best to the worst it was like .5 percent. There wasn't any giant delta to be won or lost. After going through 50 to 60 boats, the fastest hull shape was basically an existing boat. The joke was, "Don't let Grant know because he'll fire us as we've just spent four months trying to find a better hull shape and we couldn't." The whole idea of hull shapes being important has been superceded by how important daggerboards are and foils are. We joked that the hulls had become "board delivery devices."