I like to use thumb on some bass grooves. It all depends on the bass line. Some songs have bass lines that work great with the thumb. Those songs can be done with pic as well. And some work best with fingers. And yet there are songs that work with thumb and fingers like Travis picking in the Mississippi John Hurt style.
Thus, it all depends on your personal preference. Pick, Thumb, Fingers, they all can be used to attack any song. Some songs are easier to play with thumb vs fingers, and some are easier to play with pick. Thus, use what's easiest for for you for each song.
Thus, it all depends on your personal preference. Pick, Thumb, Fingers, they all can be used to attack any song. Some songs are easier to play with thumb vs fingers, and some are easier to play with pick. Thus, use what's easiest for for you for each song.