While it's true that Martin has shown no aversion to experimenting with guitar building materials, where they've not deviated from tradition is in their design. A Venetian cutaway on some models is as far as Martin gets from their time-tested designs. No ports or soundholes in weird places like Tacoma. No extreme cutaways like Breedlove. Even those crappy sounding brushed-aluminum-coated things look like Martins once you got past their silver skins.