This idea came from riding twin fins for a few years and wanting a bit more drive without the track of a long based keel. It is basically a quad version of a twin fin with the larger Twin fins at the front and two smaller single foil stabilisers behind them… The synergy of those two fins working together creates a natural turning curve when pressure is applied… Best surfed in small to medium sized waves. This design generates a lot of speed!!
Salsa on his faithful Quartet (from 2nd wave onwards).