The 1988 Olympics, saw the introduction of Lechner Division II boards. The Division II class used a 6.5m sail and were round bottomed boards designed for upwind sailing in light to moderate winds.
Although they were difficult to sail downwind and a technical board to sail upwind, they are still the fastest 12 foot board upwind in up to 8 knots of breeze. The contest for the Olympic board had been between the Davidson (a Swedish design) and the Division II built in Austria. The final Olympic rig was available less than a year before the Olympics.