Another way to keep a yacht rock steady comes from Sweden-based Zipwake. It has developed an interceptor-based trim system, which instantly adjusts a vessel’s running attitude for pitch and roll, enhancing performance in any sea state. Zipwake — designed to work with planing and semiplaning craft from 20 to 60 feet length overall, and at speeds up to 60 knots — comes in a kit. It includes mounting templates, interceptor blades (a vessel can have up to six interceptors, depending on trim required and transom space available), control panels and cabling. An experienced do-it-yourselfer could install this system. And the through-hull cable fitting from the hull mount into the boat can be hidden below the waterline or installed above, owner’s choice. Once Zipwake is installed, a yacht owner plugs in basic vessel specs: length, beam and displacement. After that, the helmsman can hit auto, and the system is functioning.