The CSE Butter Knife with its classic outlines, perfect performance longboard rockers and well-thought-out volumes is a winner across the board. Suitable for all abilities, surfers get to ride these as single fins in the smaller conditions and discover its nose riding potential. And when it gets a bit punchier, you can just slip in the side bites and you have a perfect riding board for just about all conditions. As a thruster, a Butter Knife is balanced and predictable. Pop in a quad set up and use a bucketload of speed and increased bite to your advantage.The CSE Butter Knife comes with a 4+1 fin configuration allowing you to get creative in your setup. Try a quad, thruster, or even a single fin. NSP positioned the Surf 10 fin box slightly further back on purpose, making a realistic thruster setup work out as well.