Competitors in the ninth annual 18ft Skiff International Regatta gathered around John Craig on Crissy Field early Wednesday afternoon as the St. Francis Yacht Club race manager offered fair warning before they launched their swift but unstable craft into the meaner elements of San Francisco Bay. 'Get ready to get wet,' he said. That wasn't the half of it. Before the day was over the 18s' seventh race of the week would be cut short as boats flipped over like in a slapstick film, and then the ensuing Bridge to Bridge Race from the Golden Gate to the Oakland Bay ...