Hi Scott,
I should have been more specific in my comment about the bass line “punch.” I wasn’t referring to the volume or “fatness” of the bass. I think you had that at a level that you would not want to increase, as you suggested. Rather, I was referring to the melodic content and rhythmic differences between the Train Beat style bass line and the bass line of the Van Morrison number. To my ears that made the difference I was referring to. But that comes down to a question of individual (and hence subjective) musical taste.
Paul C