XOD sails are deep and powerful, they have to be to drive these heavy boats through a Solent chop. They require careful setting to get the best performance.
Click on the following link to a useful article on tuning your XOD:
Tactics and tuning by Colin McKinnon
http://www.xonedesign.org.uk/wp-content/uploads/sites/4/2019/07/xodtacticsandtuning-270729.pdf
