Back in the 80's 'round here we used the term "Playing by feel". Now the interesting thing about "playing by feel" was that some people could do it, and some couldn't. But even more interesting was that some self taught/some classically trained/some guitar converts to bass/some players that played with picks/some players that played with finger style/some fretless and some fretted players could be said to be "Playing by feel" while some others that fell into the same categories above couldn't. "Playing by feel" was move like being able to understand the grove (or fit into the pocket), no one cared how you "learned" to grove, but just dug the fact that you could.
I was/am a "self taught" bassist, but was "trained" on trombone for 8 years. I could read music, and bought Mel Bay bass books to learn the basic of the bass fretboard. I also spent many hours learning songs by ear. In college, I took several theory classes. They counted as electives and I was really interested in music, so why not take classes your are interested in.
I have, in my life, taken 4 official bass lessons (one after 8 years of playing, and three after 20+ years of playing). But I have taken many hundreds of non official bass lessons too; Anytime I learned a difficult lick, anytime I read music to a song, any time I used my ear to figure out songs, playing in a band writing original music, learning to sing and play at the same time were all lessons, I can not truly say I did these all by myself. Reading bass tabs are lessons too. You are learning technique from someone else's perspective. All of these shape your playing, and your style. One thing I can point to that I learned on TB was the floating thumb technique. To say I self taught my self would be wrong, yes I practiced it on my own but I was taught it by reading many posts here.
Not that anyone said this straight out, but being self taught or trained by a good teacher does not increase or decrease your artistic connection to the bass. To say that one does this better than the other would be wrong.
I will say that a teacher can help you destroy bad habits that could end up shorting your career. In the four official lessons that I took, my goal was to learn how to keep my wrists from hurting. Simple techniques that I learned help me to do this.
Sorry for the rambling
