A key feature of the drive is its silent shifting, thanks to an electro-magnetically actuated hydraulic clutch, similar to the clutch used in an inboard transmission. It feels sophisticated and smooth, especially when paired with underwater exhaust. The 35-foot Formula 350 FX CBR weighs about 13,500 pounds, and the One Drive put us smartly on plane, running out to 56.7 mph at 5,780 rpm. Best cruise was a brisk 32 mph at 4,000 rpm, where we recorded 1.23 mpg. That top speed compares to the 55.95 mph of a Formula 350 CBR we tested in 2013, with twin 430 hp MerCruiser 8.2 HO/Bravo Three powertrains.