In 1970 we were really getting into the super short (5'4 - 5'8) Australian shapes. We quickly realized that these short single fins, and the Corky Carroll and Australian twin fins, had many limitations in terms of speed and control, especially in powerful surf.

We really wanted to be able to ride short boards in good size surf, so we talked it over with our Dad and he suggested we give 3 fins a try. The three of us checked out some information on hull design and hydrodynamics that our Dad had come across over the years. Duncan and I took a little here and a little there, combined it with our intuitive feel for what would work on surfboards and "presto", the Bonzer entered the third dimension. I still remember my first wave on our first Bonzer. It was shoulder high, a lined up left, and the speed out of the first turn was just crazy. At that moment we knew a quantum leap had occurred, but we had little idea of how big a part it would play in our lives.