The test Cayman LE 250 boasted a single Mercury Racing Verado 400R supercharged four-stroke outboard spinning a 15-by-15-inch Mercury Enertia stainless-steel three-blade prop for a top speed approaching 55 mph. Numbers like that may surprise upstart PWC riders, who may challenge when they see the Mercury Racing logo on the engine. For watersports, this rig rips — we hit 30 mph in just 6.2 seconds. Flat-calm conditions didn’t help; a package this size (3,715 pounds with engine) can always use wind chop to free up the hull. Regardless, the Cayman was thrifty with a gallon, despite the speed jones of the big Merc; our best cruise was a sedate 13 mph, where the engine sipped 3.8 gph, calculating to 3.5 mpg. With a 48-gallon fuel capacity, that’s a 150-mile range leaving 10 percent in the tank as reserve. Even at a healthy 4,000 rpm and 28 mph, the numbers were 9.5 gph and 3 mpg. Handling was predictable and lively; we were able to get the Cayman up and dancing at speed, and it gave solid and secure footing in turns. Rigging is exemplary: The big Verado is securely bolted to a stout extended aluminum reinforced transom, with clean wiring and hose routing.