Prop location, however, has little to do with building the perfect wake. For both manufacturers, this portion of the equation starts with ballast, plumbed to be easily filled and drained at the touch of a button. Malibu features four rigid tanks built into the hull, spread between the bow and stern and capable of adding 1,475 pounds to the boat’s load. In addition, our test boat also utilized Malibu’s optional Power Wedge II hydrofoil. While most foils offer lifting-only action, this pulls the stern downward, mimicking an additional 1,500 pounds of ballast when lowered, and the plug-and-play ballast can add still another 1,500 pounds of wave-creating weight.