A new ski from Faction, the Supertonic is a freeride twin with generous tip and tail rocker. Our testers felt that the target audience is hard-charging, big-mountain athletes, not weekend warriors or intermediates. “The tips tended to dive and catch and I had trouble finding the sweet spot,” Gleich noted. “It makes you want to straightline because it’s a little limiting in turn diversity,” Minneci said. Muecke, however, praised the Supertonic’s stability. “It’s a beefy ski that plows through crud,” she said. Tech details include a full sandwich construction, poplar and ash core and a 107-millimeter waist.