In 2006, Schaefer Marine released the Aero Tuff Luff (model A-1706) headstay foil, which fit forestays up to 5/16” in diameter. Now Schaefer has introduced a 2.0 version of the Aero Tuff Luff (model A-2506) for boats with headstays up to 3/8” in diameter. The twin-track foil is made from a super-strong polycarbonate material and features a fine surface finish to help mitigate friction between the track and a sail’s boltrope. Its teardrop shape purportedly increases lift by nine percent. From $920, depending on length. Schaefer Marine, 508-995-9511, www.schaefermarine.com