Every piece of research we have seen on this subject has come to the same conclusion: The fastest fin/ surfboard junction is a half round fillet at the base of the fin with a diameter of between 2mm and 5mm, not bigger, and not smaller.Here are some fins with base fillets of 2 to 3 mm:
That's how we do it. . . the right way !Why? Because when one strives to do the best job possible, every detail counts.Today not one even one board in 20 million has the fin/surfboard junction done this way, they are almost all either fin boxed fins which have no fillet plus drag inducing gaps, holes and screws interfering with the water flow, or 'glass on' fins which have monstrous 'slow down' fillets many times bigger than the optimum . The manufacturers of these boards don't have the 'right stuff' . . . instead of making the improvement they would rather indulge in addle brained apologetics, in the hope that customers will swallow the hype and just keep on buying the sub optimal product. . . and of course they nearly all do.This should sound familiar, as it's the same tactic used to sell the fins with flat spots and bumps in the base: " Shutp and eat your potatoes johhny if it's good enough for kelly Slater it's good enough for you " . . .. . and maybe it is but it isn't good enough for us !Now, how much difference does all this make in terms of drag ?
That's how we do it. . . the right way !Why? Because when one strives to do the best job possible, every detail counts.Today not one even one board in 20 million has the fin/surfboard junction done this way, they are almost all either fin boxed fins which have no fillet plus drag inducing gaps, holes and screws interfering with the water flow, or 'glass on' fins which have monstrous 'slow down' fillets many times bigger than the optimum . The manufacturers of these boards don't have the 'right stuff' . . . instead of making the improvement they would rather indulge in addle brained apologetics, in the hope that customers will swallow the hype and just keep on buying the sub optimal product. . . and of course they nearly all do.This should sound familiar, as it's the same tactic used to sell the fins with flat spots and bumps in the base: " Shutp and eat your potatoes johhny if it's good enough for kelly Slater it's good enough for you " . . .. . and maybe it is but it isn't good enough for us !Now, how much difference does all this make in terms of drag ?
