PRS Mark Holcomb 7 StringPeriphery guitarist Mark Holcomb’s limited edition PRS was one of the most talked-about guitars at NAMM, with its killer range of finishes, 20″ fretboard radius and 25.5″ scale length, and Seymour Duncan Alpha and Omega pickups. Now PRS has made mark a 7-string version with 7-string Alpha and Omega pickups and a 26.6″ scale length. Here it is from Mark’s Facebook. Pic by Misha Mansoor.