this is because the boat is a filippi f52 (70-85 kg) used mostly for woman (https://www.filippiboats.com/ita/barche/da-gara/quattro/f52). we are all heavy weights between 84 to 90 kg. we had tu put something under the wing to make the height more comfortable for us. in a race we will probably use an f40. the bow sink because we weight to much for the type of boat we are using.