I had a 6'3 with a 7.0" Rainbow fins RCF cut-away, I have tried other fins, but really like the cut-away as far as performance.
http://www.rainbowfins.com/surf/a_rfc_lboard.php?id=16
I rode this board exclusively for about 2 years with this setup in almost every condition that the east coast has... loved it

BTW- Nice Board!