The edict that I saw from the Safety Department said ... shall not travel faster than headway speed when inside of 600 feet. Now, some people's travel at "headway speed" causes a greater wake than if they were up on plane!! I don't understand why folks don't realize that headway speed = no wake. A boat went by my place yesterday atabout a 30 degree angle to the water .... the resulting wake was huge. I'm sure this person thought he was complying with the law. Arrgh.