sunseeker said...
When kitesurfing with a surfboard I find that you don't need as much volume as when you do paddle in surfing. For paddle in I use a 6'6 or a 6'4 and for kiting I find a 6'0 with straps is perfect. I think at 75kg that a 5'8 should do you just fine.
What he said-508-510 should do you fine-the lighter the winds you'll ride the slightly larger/volumed etc. board-but like Milko said-there's not much in it-pretty much any surfboard is fun. You'd probably want to go on the shorter rather than longer/more volumed end as you want to get some life out of the board as you progress at riding a surfboard in the waves rather than a spintip.
I ride 08' 509 Rocketfish (thanks Johnny A.-his last North board and they're GREAT IMHO) as my strapped boards (usually in more challenging high wind conditions-bombies etc.)-BUT mainly just ride an old 601 Al Merrick swallow as my kite board-DO NOT DISMISS an unstrapped surfboard as an option-sounds like you're a surfer and you'll love the freedom to move your feet around on a surfboard.
I'm about 77-78kg, kiting 10 years or so, and usually ride a 510 surfboard (surfing)
Enjoy!