I'm not sure I understand this post. It's not the Fender bass, its the GZR pickup/controls and the TI strings that make ninety plus percent of the sound. Maybe different strings on the P copy ..and that's the big change. It is surely not tone wood or the Fender decal. A Precision is most often an Alder body and is a very middle of the road wood choice. Poplar, Basswood, Ash and even Plywood would make very small changes in sound.