In some ways, when you re-envision a song like that ["Never Be Mine"], there's a completely different energy to it each night.
I think each album does have a different energy, otherwise you'd be doing the same thing again and not experimenting anew... Albums are such autobiographical material, not in the material but as an expression of what you're like at the time.
50 Words of Snow just didn't seem to have the complications that quite a lot of albums have. It felt to me like it had this very good flow of energy.