In 1975 Peter Brockhaus meets Hoyle Schweitzer on Association Island at the World Windsurfer® Championships. Schweitzer asks Peter to look into and strengthen his German Patent in order to protect their collective interests from emerging brands. By the end of 1975 and as a result of the ‘Instruction Prior to Purchase Strategy’ Brockhaus sells more Windsurfer® boards in one season than Windsurfer International USA had sold since founding in 1968.