If you want to develop into a truly musical bass player, remember to also include lots of listening in your "practice".
I'm amazed at the number of aspiring musicians who fail to work regularly at developing an ear for music - they don't make focused listening part of their practice regiment.
I'm not knocking the HL books - in fact I recently ordered a bass book myself (101 Tips ...).
However, I still spend a lot of time critically listening to bass lines (and drum parts!) from recordings and have worked exhaustively for decades to figure out exactly what's being played on numerous songs.
These skills are great to have and, for the most part, cannot be gleaned from a book. They must be experienced (kind of like learning to shoot a basketball well).
Hope I don't come across as negative, but I think some people go in the wrong direction. They work at playing bass for years, yet when they're asked to learn a new song from a recording, they have little skill to do so - they haven't developed their ears.
Good luck.