Pfschim, the '51 is very different from the Jazz. The neck is wider and fatter, the 7-1/4" radius gives a higher crown to the fingerboard than on moderns Js, and the attack is faster, with less sustain. I'm using mine because my current combo consists of three female singers, an electric guitarist, percussion and my bass. We arrange songs as though the guitar were playing the right hand piano part, and my bass the left, not to emulated the sound of a piano, but rather the fullness of one. The characteristics of the '51 work really well in this situation, with articulation and note definition but without the aggressiveness of the split-coil P (see avatar for my Classic '50s).