One disadvantage to the parabolic shape is that it was much wider at the tip and tail, producing a design with considerable rotational inertia. To offset this effect, the skis had evolved to be much shorter, reducing the moment arm. In spite of the larger "shovels" at the tip and tail, the overall area of the ski was reduced, which led to them tending to sink in soft snow. This left powder skiing and off-piste skis among the few markets not being served by parabolic designs. Several skis aimed at the powder market had appeared over the years, including the Volant Chubb and other "fat-boy skis" from the early to mid 1990s.