The worlds best SUP surfer Caio Vaz has aways been a thruster (3fin) man but his new board shaped by Claudio Pastor moves the world champ away from the classic setup and on to a quad (4fins).

[b]Note about quad fins: [/b]A quad fin setup generally makes the board have more grip on the wave face but also keeps the board more locked in. With certain board shapes it is not as vertical turning as a thruster. Good at producing a faster ride. The back fins are smaller than the front fins.

Note that you can "smooth" a bit a quad setup by using symmetrically foiled back fins.