The most obvious thing is the shape. A Jazz bass, Fender or otherwise, hangs and feels and plays a certain way, and the SB definitely feels different. I don't think of it as a Jazz bass just because it has J-J pickups. It's a totally different vibe than a Jazz.What makes the SBs different to You, as compared other J basses?Cheers
Tonewise, the rear pickup on the SB soloed has a very distinct voice, especially when you engage the preamp. It can go from deep, smooth and growly to extremely barky. Mine's fretless and tons of fun to play. If I ever gave it a proper set-up, I'm sure it would be truly phenomenal.
Cheers