Twinzer v. Thruster set-up

What are the fundamental performance differences? What does a 5th fin in the middle do? Thanks much.

What are the fundamental performance differences? What does a 5th fin in > the middle do? Thanks much…the basic difference between the two is the center fin.The center fin gives the board stability ,as well it also will allow the board to draw a longer,straighter line than a twin board set-up will give you.A twin skates from rail to rail ,and is quicker in it’s radius,making for a quick down the line wave killer.Herb.