Ive seen him live a bunch of times on mushrooms, thats definitely a good time. I met him once, him and Lyle Mays are really great guys. I do get tired of it and go in and out of phases, but I'm like that will all styles of music. If its a persons bag or not, you really cant deny the complexities of his rhythm and solos, Jaco sure thought he was good enough to jam with!!
I do love hard/dark music too!!
I'm predicting the Fletcher/Metheny collaboration album of 2016 which will spark the hard/dark jazz revolution!! Bikers and yuppies will join forces for a whole new Metal Jazz movement!! It could happen!!