This was a prototype, and we topped out at just shy of 55 mph, but it was a struggle to get there. Hammer down and the high inclination displayed by the bow proved less than optimal. Aviara’s engineering team assured me that they planned to conduct a frenzy of prop testing and other alterations, including potentially making some adjustments to the X dimension, which is the height of the engine and also relates, naturally, to the height of the sterndrives on the transom. After that, I expect that glitch to go away with the expertise of MasterCraft and Ilmor. Once over the hump and on plane, the AV32 ran fast, flat and sure-footedly, even in lumpy cross seas.