This is a legit question and I don't know why people see the need to make fun of it.
The thing about Smooth jazz is it has some awesome bass tones, and the players are very particular about their tones - well many of them are at least.
On the Lakland DJ5 - yes and no. It's not really going to give that modern tone out of the gate since it is a passive bass. I know this since i have one. The key to that tone is a quality preamp. If you put it into an outboard sadowsky pre, you will have a very passable smooth jazz tone. The only issue there is the sadowksy sucks your mids out, and on a J bass, if you like to throw those thick pops in now and then, you will want both pickups dimed - further sucking the mids out.
This can still be ok, but a great smooth jazz tone is very versatile - in other words it sounds good when you slap and play finger style. This is not easy to pull off, but a Sadowsky will get you there. It now boils down to personal preference. My issue with the sadowsky sound is it relies on 4k to cut and replace those lost mids. To me, that can sound a little more thin and brittle in the high end then I prefer. The sadowsky can also get lost in the mix for finger style since 40-60hz is pretty boomy and a lot of engineers are going to tame 4k down.
For me, I am going with a handmade jazz style bass with hum bucking pickups and an ebony fretboard. The reason is I love the Jazz style bass, but I also want warmth and some natural midrange between 3-500hz. I prefer a Bartolini preamp too which has a midrange control. The more subtle pres like the xtct with the midrange control added are, IMO, an ideal combo for a jazz bass if you like smooth jazz. I believe the Sadowsky pre was based on this Bart, but the XTCT has more mojo to it IMO.
Listen to the pop tone here -https://
'78JB Tone / Marcus Miller style tone - YouTube
Now if this jazz bass had en ebony fingerboard it would have more warmth and midrange and the finger style tone would cut a lot more in the mids. He doesnt play finger style in this clip, but I am making an educated guess. Maple is quite good though and MANY players use that.
So that is one option (J bass, custom with bart pre and ebony or maple fretboard). The other popular way to go is a dual soapbar bass. That's a whole other beast, and this post is already way too long.
I really love smooth jazz bass players. Huge influence on me, so I hope I can help with the discussion.