these two boards aren't that far behind in those ideas. both were rated by every good paddler who tried them. super stable for the width. bop and dw goers and pretty good in the flats too
couldn't get anyone interested in development. would have loved to have tried the concave thing thought the tail. would have loved to refine them
however banging my heading against a 'wall'just frustrated me out of doing stuff like this anymore and to see something like these boards pop up a year or so later and people going wow just adds to it