Piver boats could never sail well upwind. In addition some versions left much to be desired, because backyard boatbuilders lacked the necessary skills or altered the original plans. However, Piver was driven to maintain his position as the world's top designer. He responded with the AA "Advanced Amateur" range with a sleek, fast profile using fiberglass over marine plywood and using double chines to improve his boats' underwater shape. Plans for the Pi series and custom designs were available for lease only. He sailed his next boat across the Atlantic to compete with the growing fleet of multihulls that was based on the south coast of England.
