Hi Windup,
I took this quick pic of the paddles you're talking about. The Fanatic 8" would be close enough to the Starboard 525 cm to be almost called identical in area and shape. The Quickblade 100 sq in as you can see is a more squat shape but would be very similar in square area to the Fanatic and Starboard blades. I would say they are all around 100sq in.
The catch curve of the blade on the Starboard is different to the Fanatic and Quickblade which is flat on the Fanatic and subtle curved on the QB.
The Fanatic has quite a pronounced spine for dihedral, the Quickblade has a more subtle dihedral spine and the Starboard more subtle again than the QB.
DM