The five fin setup offers options for every rider on the boat. Set it up as a single fin, twin fin, thruster or quad. The single fin setup offers a loose feel with a good amount of hold and stability but limits the ability to generate speed. Twin fin will be loose and playful with a bit more stabilty than the single fin. The thruster (3 fin) setup will generate good speed with more stability than the twin fin. A quad (4 fin) setup is all about speed allowing you to pump and generate speed using the fins. We do not recommend using all five fins at the same time as it will produce too much drag.