It took us 10 years to get a permit. We were only allowed a 4 ball course, it had hours for usage, had to be submerged when not in use, and we needed four outside corner marker bouys that said ski course on them. To set up the course we snagged the mainline and then worked our way down clipping on the balls. By the time we finally got it set up in the morning the wind was up and other boat traffic was out. WE finally just gave up. It wasn't worth it. :/