600 Mini Driver in FST? Although I think that's much flatter out the tail.
For a surfer of your ability and weight, especially trunking it in Hawaii I'd have you down around the 28l range which would put you spot on for the thinner 600 Michel Bourez. I think that would have plenty of volume for you. More than enough for someone who surfs well and is light on their feet. That's my opinion at least. I'd check that one out if I were you.

