This is the sail arrangement for downwind sailing. Note the boom is foreward of the shroud. It is out more than 120 degrees. This makes for stable downwind running. Only problem it takes time to change to the other side. It also reduces changes of unintentional gibes. Therefore next boat will have unstayed masts.

Regards Yrvind. Thanks Beppe webbmaster for help with inserting the picture. One day hopefully it will get into my head.