We have an '06 Sunsport 24V with the Gravity package. To my knowledge the only difference between the Launch and Sunsport, assuming you get all the Gravity bells and whistles, is that the Sunsport has a walk-through underneath the back-right ballast compartment cover. Exact same hull shape as the launch along with everything else structural. Like the Launch, stock wake is amazing and custom ballast only helps. More than anything, I find myself using the bags to tweak and define the wake depending on how many people are on board/where they are sitting rather than to amp up the wake. We haven't tried to surf it yet, but it can definitely throw an adequate wake to do so and we plan on trying this out whenever we can afford a board.
Overall, very satisfied with our purchase and the quality of the boat.