We were lucky enough to test the all new Nautique Surf System equipped on a 2013 Correct Craft G23. Greg Waters and the service department at Active Water Sports just completed their first retrofit of the new device today and soon after hit the water. The system is very similar to Malibu's Surf Gate with one exception... The driver can change the shape of the wave while underway. This is done on the touch screen and has nothing to do with shifting ballast or people. As many others have stated the G23 is a beast with a lot of built in ballast but that does not mean we couldn't have used a little more today.For more questions about purchasing 2013 Nautique Boats Contact Greg Waters, email@example.com.