hey guys and gals, I am hoping someone here can help me...

I recently purchased a 2012 Starboard Quad IQ 74L and would like to know what the fin area is for the 2x11cm and 2x13cm Drake Natural Wave fins supplied with the board is. I would like to get the most possible range out of this board and without knowing the fin area I unfortunately have no starting point to add or subtract fin area from. Starboard has been pretty ****ty about answering this inquiry and since there is loads of information about starboard boards on this forum I was wondering if anybody has an idea? suggestions pertaining to fin combinations used and their positioning on this board would be greatly appreciated as well!

Cheers,
Tom?