Interesting. I don't know if polished is the word I would have chosen, but I don't know how else I would describe it. I guess my best guess at a description would be that the way he used to sing had more of a visceral grit to it that really projected from his very soul. It was still smooth and clear, but it had that underlying emotional depth. Now when he sings it's like he's got the technical prowess, but the depth has fallen by the way side. There are very few songs that I can name recently outside of ones like Brutal Love that seem to have as much of that.