Faster Twin-Fin! Kill! Kill!Credits: Alan Rich, Bill Delaney, Hal Jepsen, Scott Dittrich, Hideaki IshiiEncyclopedia of SurfingRichards, MarkKealoha, DaneBertlemann, LarryCurren, TomPotter, MartinMoreHistory of SurfingTwo Fins, More WinsMark Richards, Gentleman KillerSimon Anderson and his Mighty ThrusterInterviewsMark Richards (1993)Mark Richards (1978)FeaturesTWIN-FINS: YOU SPIN ME RIGHT ROUNDMARK RICHARDS: "NOT PRETTY, BUT PLENTY RADICAL"The Sunday JointSUNDAY JOINT, 8-12-2018: MARK RICHARDS AND THE TWIN-FINVideosCorky Carroll, 1970 Twin-Fin Session, Cottons PointTwin-Fin Surfing, 1970Mark RichardsLarry BertlemannTwin-Fin Surfing, Early '80sMore