What you saw was skiers feeling the Miami water. It's so soft, that even when you have a less than ideal turn, it just feels so good that you think you can just bury the ski and make the next bouy. Sometimes that works, sometimes it doesn't. If it's glass calm down there, you get a little bit of roll, and you might not have a perfect turn, but you CAN make it up there....as you can see by the scores.
It's very deep and stays warm year round. When you have a little head/tail coming down the lake, it's as good as anywhere on the planet.