At first thought, this doesn’t seem like a logical partnership: Doug Zurn, who’s designed the sleek, fast MJM 50Z; the sleek, fast Shelter Island Runabout 38, and the sleek, fast 57-foot Vendetta for Billy Joel, has joined forces with John (Jock) Williams, who designs and builds the most traditional of all Maine lobster boats, originally for commercial fishermen and now for well-heeled owners who appreciate the “lobster yacht” aesthetic. But come together they did, with the new Williams 38 as the result – a classic-looking lobster boat above the waterline, with a state-of-the-art hull design below. The visible part of…