Old thread still, but recent comments at least!
A few people had asked me to record this tune in years past, but I kept putting it off because I knew I'd have to record the same part twice, which would require some time to actually learn the part better.... and I didn't have that time. Anyway, I finally did it. It'll never be as perfect as Jaco (obv), but it sounds pretty decent to my ears! I found a nice backing track which I linked to in the video.
I'm not using any effects here.
What I did was... I recorded the same part twice (which is why you see two angles for the first time in any video I've ever made!). Audio comes from my bass POD in stereo, so I split each track into two mono tracks and only kept the left track from each one. Then I panned the first one at 60% left, and the second one at 60% right. Boom. Chorus. That's it. No other fancy nonsense -- just two tracks played over each other and panned a bit. I don't find it particularly difficult to play this tune one time, but I DO find it particularly difficult to play it twice exactly the same! It was a pain.