After spending two full wind-whipped days on the Grady-White Canyon 336, I've learned one thing: When my kids hit their rebellious, strife-ridden teenage years, I'll need to get a Grady-White. What does one thing have to do with the other? Here's the deal: Wind-driven waves build in height more quickly than in wavelength. When the wind's fetch is limited by land as it is in the Albemarle Sound, where we were testing-the waves are unable to fully mature. They build in height quickly, but don't have the space necessary to build in length. This is one reason why sounds and bays see a tight, steep, pound-your-brains-out style of chop. Another reason is depth. Shallow water reduces length even more, which makes for more steepness and tightness. If the height-to-length ratio exceeds 1:7, which it certainly did during our test, the waves will begin to collapse at the crests and create whitewater breakers. Put all of these factors together, and you get immature waves that have grown too big for their britches. They're wild, rowdy, out-of-control teenagers. And to handle them properly, you'll need that Grady-White.