As bass players, we tend to hold down the fort by playing the root. But when you launch a fill or solo, starting on the root may sound tired. Starting on the 5th is usually a safe bet. The 3rd also works well. In fact, any chord tone other than the root works. If you want to start out dissonant, grab a non scalar tone and then slide back into the scale on the next note.
Think of solos and fills in terms of mimicking speech and telling a story. Think of your tone of voice when you start the story. Then find the note pattern that matches that to kick it off.
Think of solos and fills in terms of mimicking speech and telling a story. Think of your tone of voice when you start the story. Then find the note pattern that matches that to kick it off.