I found a quartet like one of these in the 2nd hand board surfshop down in Anglesea Vic. Made my Neal Purchase collection up to 3! - 2 twins and a quad. The quartet transformed my surfing, so much speed and drive, on good waves (and mediocre) this board is an absolute joy to ride. Tragically I knocked one of the fins out, the left rear fin, got any tips how I should get it repaired mate? Thanks, Possum Pete.