I think his point was more along the lines of "the powerboaters were inconsiderate" which is a common theme. His situation is kind of interesting, what with being in a narrow channel and all... I think if they were going 30mph then they would be planing which will create a smaller wake than if they *weren't* planing... I dunno.
My rant about powerboaters is from last weekend. Seemed like this guy was following me around with his tuber, going in circles to make bigger waves for the tuber, but killing *my* momentum. There's a big-butt lake here, why does he have to follow me around? Aside from that, I can't really complain about anybody in my lake...