Always liked Jaco before he got famous...even liked most of the earlier Weather Report stuff. I must have practiced "Teen Town" a zillion times back in the day...also Birdland...note for note.
Anyone who wants to know about Jaco, should look up a Pat Metheny album called "Bright Size Life"...Jaco at his warmest, most beautiful and lucid self. Just Jaco, the bass and a B15N along with guitar and drums...sort of a jazz power trio.
Everything on that album was breathtaking, and appropriately played. Not sure how he got where he ended up...drugs, alcohol, mental illness, and ego problems...point is, if you work at it, there is a wealth of Jaco's recorded playing that is unique and spectacular in the early years. Not so much after he was a star.
Gotta admit I liked Hejira, also. Oh well.