Firewire Mannkine Surfboard . Dan Mann - The inventor of the four fin ultra-groveler; the Sweet Potato in 2009 and it’s evolution, the Baked Potato in 2010. Based on Coronado Island in San Diego California, Dan Mann can surf both goofy and regular foot equally well. He is also a Catalina Classic Paddleboard Champion. He began paddling at 19 as a way to both cross-train for surfing and understand the ocean better. His experiences on paddleboards have taught him that water likes what is simple – an approach he now applies to surfboard designs for Michel Bourez, Kelly Slater, Kai Lenny and others, in addition to his groveler designs for Firewire like the Chumlee as well as longboards like the TJ Pro and The Gem, his collaborations with 3X World Longboard Champion Taylor Jensen.