Once at sea, the Frank Mulder-designed yacht put on a tour de force. Her hull, which is hand-laid using vinylester resin, is solid below the waterline for strength and foam-cored above for weight savings. Carbon fiber is used in load-bearing spots such as where the swim platform bolts onto the transom. This all makes for a solid, exceptionally quiet ride. We splashed happily through the rolling 4-footers at 25 knots. When I dropped the hammer and put her full-steam ahead, the boat shot up to a zesty 30.5 knots, though her stability belied her speed, like a luxury sedan zipping down a highway. At 9 knots, the 68 (which has a fuel capacity of 1,849 gallons) has a cruising range of 2,000 nautical miles — enough to voyage from Sydney to Fiji (or Miami to Nova Scotia) — which is a pretty good poke without having to hit the fuel dock.