The Custom 22/12 features a hum-single-hum configuration, a newly designed, fully intonatable bridge and special humbucking pickups specifically designed for 12-string guitars. After many years of Paul Reed Smith and our Private Stock team building one-off 12-strings, this model incorporates all the special neck dimensions, nut spacing, bridge design, fingerboard radius, string guages and set-up specifications that make the custom built instruments play so smoothly.