Once, while coaching a team before the Rolex International Women’s Keelboat Championship, someone asked me about jib sail trim, so I hopped on board and sat to leeward to video their jib leech while ...

Some people say the ­mainsail is the trickiest and most important source of power in the inventory, and be that as it may—depending on whom you ask—the headsail is incredibly dynamic and critical to ...