DiMarzio DP257 Illuminator Humbucker Bridge Pickup (Black Metal Cover)Designed for John Petrucci's Music Man JP13 guitar, the Illuminator Neck and Bridge Models are the next generation in John's signature pickups with DiMarzio. John says he looks for versatility in his pickups so that he's able to span a multitude of different sounds within one guitar, going from massive overdrive, very tight, rhythmical and aggressive to "more expressive, dynamic and very liquid" when he plays solos. They're a bit bold with more of the