I think they have it right in the islands, from what I've read...they (the heavies) consider themselves watermen, not limiting themselves to a 5'6" fish on alternate tuesdays.
      I think we would do well to emulate.

      The hawaiian surfers surf, use a kayak, an outrigger, spear fish when things have gone flat, kite surf,just paddle about on a board , belly board, body surf, wind surf,
  and so on....
           ....look, it's all about loitering about with water in your ears, OK?  

         Aquaeous Locomotion.  
        
              That's what we're talkin' about here bub.
  
  And yes, I longboard, and surf kayak as well.  The two disciplines are not mutually self exclusive by any means.

    Hugh, a couple of the exceptional boardies here in Savannah have gotten in one of my surf boats, (at different times), and came away with a new appreciation for what it is we do out there....(one of them is no slouch either....a full time karate instructor, and arguably the best longboarder in JAW-juh, was seriously spooked with a short turn), the other up ended and needed rescue....rather badly.
     I challenge you to give it a try....try something you can't do....
           Elevate.