Stu,
I think you know the answer to this one! :o)
just look at who's really getting the gigs? who are the legends of bass? Lee Sklar, Carol Kaye, James Jamerson, Marcus Miller, Will Lee, Anthony Jackson, Paul McCartney, Joe Osoborn, Jimmy Haslip, Jaco...
can they play fast? you bet. Are they famous for playing fast? er, no...
When Jaco came out, there were a lot of fast players around, but it was Jaco's groove, his sense of space, his sound his feel, his ability to work with so many different combinations of musicians and still have a voice that made him great. Carol Kaye can play bop licks with a pick at near Charlie Parker speeds, but got all her session work for having a good sound, great feel, being reliable and coming up with great lines.
Speed is really a matter of control. It's not an end in itself - that's why Bob Dylan is a more recogniseable voice than JC001 (world's fastest rapper).
People listen to what you say, not how fast you say it. Bass is about space and time, it's the zen part of rock 'n' roll - leave the mad ego speed nonsense to mullet-haired guitarists... :o)
Use the force... :o)
steve
www.steve-lawson.co.uk