I shaped this board for a guy named Bryan. He wanted a perfomance twin to ride in steeper waves in the head high range. This is the first performance twin fin I've shaped. Or performance shortboard for that matter. Measurements are 6'2 x 11 3/4 x 18 3/4 x 14 1/2 and it's 2 3/8" thick. Single into a deep double between the fins (almost bonzerlike). This will hopefully help it hold. Fins are also moved a bit back further than a normal twinfin which should also help it hold.