I think what Leo Fender did was find some "personality spots" he liked where he'd put the pickups of his instruments. The market did the rest for brands such as Fender, Musicman, etc. (along with RICs, some Gibsons, etc.). Now, the spots he happened to like seem RIGHT to the majority, of course, that's why it was so successful and recognizable to the point now our minds are conditioned and we describe and compare using terms like "J/P sounding", RIC's "ringin", whatever. I'm the first one to have this problem. To my ear even a Jerzy Drozd or a Ken Smith sounds lacking/sterile/lame/no character if they can't do a semi decent P or J or MM or any "characteristic" sound. I own 2 Stingray 5vers, a korean Fernandes Gravity Deluxe V (I hardly ever use it, but in the end it's still a more hi-fi J which happens also to produce a great P tone when soloing the neck PU), an Epiphone Viola and a P/J kit bass. Had lots of "modern" basses, none of which I kept. The amount of copies/homages/reinvents the P bass "inspired" talks about the much sought after PERSONALITY in it's sound. Nobody clones Jerzys sound, simply because there isn't such a thing.