Listened to the original and it appears that jaco ended his version after the double and triple stops according to Hal Leonard's "The Essential Jaco Pastorius". The point I'm making is that many believe the talent of this type was always awesome. But most never see the thousands of hours spent shedding. He is on video saying it took him over 9 years. The talent IMO, is having the superpower to maintain pressure on yourself to learn such music.
Hey! I just wanted to say i love this song and am trying to learn it right now. But i have a question, how did you get the strumming, for example in bar 86 so soft? In my experience struming on bass always sounds a bit aggressive.