Rivvy, the homeowners association has a permit to treat with chemicals, but as much as that, we've been mowing them out with a couple of inboards and skiing. There's a lot of incentive not to fall. During the lake's tournament days, we did moonlight canoe rides with a sprayer of Aquathol hanging out the side, but we're trying to play by the rules and stay within the limits of our permit for spraying.
Ed and 6balls, I recall that the boat wakes at Keller were kind of a mixture of brown and green, with lots of salad flying. The island that was at the north end of the slalom course there is reputed to be a kind of semi-floating bog- just a mass of vegetation that's more or less anchored by its roots. When Drew Townes (??) was scouting locations for the tour, he and I paced out the course on the ice in the winter. There were matted weeds in the ice, but I don't think he noticed- making the thing work was Ed's job...