Description Product Description Among the lineup of Ernie Ball Music Man, the John Petrucci model with a particularly thin finished neck shape, elbow cut of the scoop cut design that does not feel the stress, piezo pickup, such as the original tremolo unit that is mounted it is a model that various ideas have been packed. This model is optional color of stealth black! Matte finish without gloss is a rarity! It is a model "JP6" the underlying among Petrucci model that many exist.