AGREED!! I too found what works and kept going.I own 5 PBasses, '66 CBS, '57 RI, '62 RI, '98 AmStd, '99 AmStd. They all sound the same. Never thought about - why.
16 Jazz Basses and counting and only one Precision (because someone told me I had to.....btw they were wrong). All passive with mostly David Starr electronics and SME pickups. Same strings for all, same amp settings for all.