I never read Eq Fuqua's book but I did read all 5 arcticles called "Walk With Me", by Mauro Battisti. There are 5 parts in a PDF format available for free dowloading, here at this very same website. Here's the link:
Walk With Me [Part 1], by Mauro Battisti
This article is a 30,000ft overview of walking bass, it won't make you into a "Ray Brown Junior" but is definitely a step in the right direction.
Get your favourite jazz CD and transcribe what the bassist is playing. Once you learned the line you've transcribed by heart, analyse it, see if you understand what is happening and then transcribe it into a really weird key like Ab or Db. You will immediately find out what you need to practise next.
An exercise I've learned from a Rufus Reid DVD: Choose a tune you like, get a blank sheet and write down a bass line for it without having any instrument at hand. Just write the chords on top and construct a bass line, connecting the chords in a way you think will sound good. After you're done with the ENTIRE tune, play what you wrote on your bass. Some things will sound good, and some things won't. Fix what you did not like and play again until you're happy and begin again with another tune. This way you will learn what works and what doesn't.