Hi Chris...good to hear your coming back!
i would agree with ado re the tabou's... awesome boards in chop/swell possibly the best boards i have sailed in rough conditions.
i used a manta69 (110ltr) (recently traded for a wave board

) with a 7.8 sail and a 34 weedy. i had no issues with the handling of the board only issues with too much sail area.
be careful not to select a board too small though as the start is critical...if you manage to get a privelleged posistion (front row) its prob not a problem..how ever if you start a couple of rows back then you may struggle to get on the plane with the masses of sailors fouling the air.
i didnt get to plane on the 69 untill i got to the reef.by this time the leaders had gybed
around the out side mark.