Martin really went to town with the CS-GP-14. The Grand Performance body is beautifully proportioned (fingerstylists are going to freak out over how this guitar feels.) The three-piece back is Guatemalan Rosewood and cocobolo, and the top is European Spruce. Nods to contemporary boutique lutherie-think come in the form of a soundport on the upper bout and rosette and inlay that are marked departures from Martin's traditional book of tricks. Only 50 of 'em and by all accounts, they're going fast!