It seems like almost all of the paddle shapes that we now regard as "classic" - the beavertail, ottertail, etcetera - are also generally regarded as deepwater paddles due to their deep draw and rounded tips. The one exception I can think of might be the sort of shape Shaw and Tenney call the Algonquin, with sharp shoulders and a flat tip. I think I've also seen this shape called the Huron as well. Was there a genre of paddles for moving water that have fallen out of favor? Or, perhaps I'm thinking about this question incorrectly. Is the general Sugar Island shape more "classic" than I'm acknowledging?