Mayhem 5 Fin (Medium)Mayhem 5 Fin (Medium) The Mayhem 3. 0 is an all new template. With the trends in modern HP shortboards going towards more curve under the rear foot for critical pocket surfing, we felt the need for the fins to evolve with the board rockers. We wanted to add a bit more base, with more rake and a narrower tapered tip than our long standing thruster template. The idea with the base and rake is more resistance and bite when deep into turns and to maintain