I only have store test opinion on Flea J ,Roadworn J and Performer J ( with finger style + both pickups engage. )
With Flat Amp EQ, the Flea J has juicy warmth and meatier tone ; RW J sound thinner but open sounding ; and the Performer J has better growl along with more present Upper MID.
If i make some Amp EQ tweak, i more prefer the Performer J sound which has sparkling growl than others without losing E string clarity and still full sounding G .
All three bass has nice neck, but i prefer the flatter fretboard radius on Performer J and notable better tone balance E and G / A and D than others.
Hope help.
With Flat Amp EQ, the Flea J has juicy warmth and meatier tone ; RW J sound thinner but open sounding ; and the Performer J has better growl along with more present Upper MID.
If i make some Amp EQ tweak, i more prefer the Performer J sound which has sparkling growl than others without losing E string clarity and still full sounding G .
All three bass has nice neck, but i prefer the flatter fretboard radius on Performer J and notable better tone balance E and G / A and D than others.
Hope help.