Individual batten setting for better performance! Since each batten fulfils a different task, we use no less than 30 (!) different batten types. They differ not only in their cross section (round or rectangular) but also in the materials used (glass, glass-carbon composites, full carbon) and in their geometry (thickness, width). Moreover, all battens, regardless of their length, have specific hardness degrees and profiles for 100% pressure-point stability in the centre of the sail, optimum twist in the top (horizontally and vertically), and reduced top weight (easier handling).