With the introduction of the open world battles and particularly the ability to escape a battle instance (run away), I believe the introduction of studding sails would be more relevant.
Studding sails could be used to significantly increase your speed (although requiring much manpower to operate) when one is trying to escape a battle, or chasing/closing in on an enemy.
I think studding sails should be implemented as a purchasable module for your vessels. Operating studding sails should also divert any crew from gunnery, survival etc.
Any thoughts?