From John Sweet- The original Max C-1 was designed by quartering a kayak and spreading it to create the necessary 70 cm width. In the process, the characteristic sudden curve in the hull profile was introduced while piecing it back together. This hull shape proved to be beneficial for pivot turns, the precursor of stern squirts. The sport of squirt boating got its origin from a boat-design accident! Davey Hearn should be writing about this. I may not have it precisely right. The kayak used was, I believe, a Prijon Sanna [not Sauna].