Hello swaylocks,
I already built two longboards and I really like them a lot! I’m a fan of this configuration, works great for me with the boards I built.
But while considering a new project I came to the point, that the bottom shape I used between the fins is maybe not the optimum.
I used a “classic” double concave that has the apex in the symmetry line of the board. In a 2+1 or single fin or quad with the rears outside approach, this makes really sense to me.
But the McKee setup has the rears near to the stringer so I think that it could be more useful to move the apex to place where the rears sit.
Made a scribble to explain better, what I mean:
What do you think of this bottom design? Will it turn better or worse? Will the speed increase or decrease?
Cheers,
Andi