As the old yacht designer saw goes: A yacht’s design is, by definition, a compromise. Jim and Sissy had taken this to heart. While many decent custom yacht designs began on the back of a cocktail napkin, at some point with them all, a sober hand had stepped in and made certain the damn thing would work. When someone claims a yacht is a first or one of a kind and was built “without compromise,” she’s likely for sale. Jim’s is.