John Peck's Penetrators are very recognizable because of their wide double stringers and red nose and tail blocks.  John shapes 2 shaping bays down from us, when he's in town.  Whenever we want to do a wide-double stringer, we affectionately refer to it as a "Peck Stringer".  Here's a 7'10 Joy with a Peck stringer, available at Almond Surfboards, Newport Beach.