Post celebrates its 40th anniversary by updating its 50-footer. Around his 40th birthday a man may start acting a bit strange - showing off, working out like crazy, and generally doing impetuous things like buying a sports car. These attempts to latch onto some part of fading youth are what's generally known as midlife crisis, and although the phenomenon is common among men, it's not generally associated with boat companies. But come Jannary 1, Post Marine will enter its 40th year, unmarred by the misfortunes that befell many of its competitors, and lately the company's behavior has been midlife-crisis-like. For example, last spring, one owner took delivery of a new 50-footer and caught six blue marlin in the first seven days he fished the boat. In March another new 50 took second in The Bacardi Billfish Toumament. In June a 46-footer won the Treasure Cay Championship with a 1,030-pound blue marlin, only the second grander ever caught in the Bahamas. And as you read this, the company is introducing a variety of enhancements to existing models: the 43 will be redesigned as a 42, the 46 will become a 47, and the 50 has already received a host of Improvements. A day on the first new 50 indicated to me that despite all this showing off and body sculpting, Post is not trying to recapture the past but is preparing its boats for the future.