I take the original poster to be asking if a tone like Jaco's can be achieved. I say yes... especially with the bridge pickup soloed. And you can indeed use that kind of tone while not using his phrasing
I played an "interesting" bass today... it was an orangeburst P bass with DiMarizio pickups including a J at the bridge position. Mighty Mite fretless neck. Pole pieces set way too high. Actually pretty cool and tagged at $249. Like I need another fretless.
I soloed the bridge pickup and it did have a very similar to Jaco midrangey tone. Lots of punch and harmonics available. Rolled the P pickup in and the tone was gone, replaced by a less distinct, less controlled sound.
Handed it to another bassist and it sounded completely different. Hands.
Then I played some slap on it and another guy asked me what kind of effect I was using on it... sounded like a flanger to him. Probably just the strings vibrating between the raised pole pieces (like a football goal post).
Later I was asked to check out a Peavey Dynabass by another bassist. Soloed the bridge pickup and guess what? Jaco-esque tone ensued. Slapped on that one and people thought I was using an envelope filter. Nope... just varying my release (very subtle) on my fretting hand while using my forearm to mute at the bridge. Hands.
IME it's far less work having a bridge pickup, that'll put you in the ballpark. Work on your touch and that's really bring it home.