Think of the new MB Sports F21 Tomcat as a slightly smaller clone of the F23, MB Sports' flagship pickle-fork wakeboard boat. After all, the MB Sports F21 was CAD-designed directly from the F23's newly refined hull. But the two share more than just DNA. Like the F23, the MB Sports F21 sports MB's new pump-free, gate-controlled ballast system; redesigned interior and exterior graphics; and ZeroOff GPS-based cruise control. Thanks to the new, collapsible Skylon Pro Series II tower, which helps this 21-foot wakeboard boat fit under a standard 7-foot-tall roof, it's also a dream to store.