I don't have an answer to the wake problem, but it is a problem worth discussing. The picture shown is exactly what we see every busy weekend day. The heavy displacement boats generally travel 300-600 feet off shore. When the big ones go by, my boat bangs against the dock, even though I have whips to keep it safe. If I'm in my kayak, I have to turn into the wake in order to remain safe and dry. If the water level is high, my small beachfront is washed over, removing soil from the lawn and putting it into the lake. The kids love it. They use the windboards to surf the wake.
Eroding conditions also occur during congested times, even without the heavy boats. Due to an easterly bouy, its difficult for both boats to remain 150 from each other while the western craft maintains 150 from the shore. That doesn't stop them from trying though. Frequently, one or both will reduce speed to maximum wake for the passage. We've seen 20+ boats passing in opposite parades, grinding along at about 10 MPH and generating massive waves. It would be better for the lake if they just maintained speed and passed at 100 feet rather than 150. The MP make a lot of money when they show up, but also cause a lot of extra congestion.
When boats go by at very high speed, we see little wake, and their noise is gone much faster. The ideal situation.
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