Measuring 20 feet, 5 inches in length overall, the Switch 21 Cruise is the longest of three models, and it features one of three trim packages: Base, Sport and Cruise. Although it’s in the pontoon category, you’ll find no aluminum tubes below the Switch’s deck. Instead, it’s a tri-hull, its trio of V-bottom hulls fabricated from PolyTec, the proprietary mix of polypropylene and glass fibers introduced on the aforementioned Spark and, now in its second generation, used on multiple PWC hulls in the Sea-Doo line. The dominant center hull, extending 7 inches deeper than the narrower outer hulls, is similar to a Sea-Doo PWC hull in shape and houses the engine, fuel tank and jet pump. Outer hulls reveal individual segments packed with closed-cell foam flotation. The reason for the latter is because Switch models are assembled in Lego-like fashion. Take the common components—center hull, bow and stern—then add or subtract segments in between to reach the desired total. Bolted cross members tie it all together.