I'll start by saying I've used 3D fins for about 5 years and found them excellent. As I've aged I've increased board length and recently got my first MAL. The Gohard fins were good for down the line speed but lacked drive in most turns. I replaced them with a 9" centre fin and 2 small side fins and the board goes great. For me the Gohards are too small for a 9' MAL.