The blend of s-glass and carbon allows softer battens to be produced with high compression strength. A CT33S batten offers even more durability than a pure carbon batten as it can withstand tighter curvatures without failing. CT33S battens are heavier than CT33 battens, as a greater amount of s-glass has to be added to achieve the same stiffness as carbon.
A combination of CT33 and CT33S battens can be used to create the ideal batten set for inshore-offshore use. Using CT33S for the top 2-3 battens provides added durability; pure carbon CT33 battens can be used for the longer, stiffer battens in set.