User blog comment:Plexioth- xD/Monster Hunter 3 Ultimate/@comment-76.25.32.49-20110923214802/@comment-66.157.82.8-20110924002549

lance does both impact and cutting depending on what the monster is weak to but if its cutting damage is say 58% and its impact is 62% then it wont be triggered because its not enough of a difference so it would stay cutting in short it does both cutting and impact