Diamond Tail Twin – The Surfboard Collective,Thomas Surfboards Diamond Twin Review — Blinksurf®,6'5,Diamond Twin – Thomas Surfboards,My finished Turbo Round Tail Twin Fin. 6'2” long, 201/2” wide & 23/4” thick The Turbo Twin is a new model & the stock tail is a Swallow. @quiksilver I've shaped a