Fins on Bic 8ft 4"

Hi All,
I have just bought a nearly new used Bic 8ft 4" whacking great board.
I am yet to go out on it yet but it has a funny fin set up. Is this type of set up normal? I haven't seen anything like this before, normally people have a large single or a large single and a couple of mini fins on the sides where as this has med fins on the sides and a large single at the back.
I have a good set of FCS M5 fins on my mal. Would they be better on this board?
See link below...
http://www.google.co.uk/search?q=bic+8f ... B320%3B240
Any thoughts appreciated.
Dan
I have just bought a nearly new used Bic 8ft 4" whacking great board.
I am yet to go out on it yet but it has a funny fin set up. Is this type of set up normal? I haven't seen anything like this before, normally people have a large single or a large single and a couple of mini fins on the sides where as this has med fins on the sides and a large single at the back.
I have a good set of FCS M5 fins on my mal. Would they be better on this board?
See link below...
http://www.google.co.uk/search?q=bic+8f ... B320%3B240
Any thoughts appreciated.
Dan