Agreed! I’m really trying to master the accompaniment before I start digging into improvisation. I love the various musicians I referenced but for the time being, I’m focused on trying to lay a good foundation for my fellow musicians to work with.if you want to learn walking bass, it makes sense to stay with looking at existing bass lines. There’s also value in transcribing trumpet, sax, piano etc. solos, but wouldn’t think it should be your first point of call when studying walking bass.
For example, you may see more use of alterations on the dominant chords, building tension, than focus on extensions during the I chord.