Originally Posted by NWBoarder
Is it necessarry? Absolutely not. Most people will tell you that it provides better leverage and heelside response. Personally, I've tried them both ways, (aligned and non-aligned) and I prefer them aligned. My reasoning has nothing to do with leverage and everything to do with comfort. I find the bindings to sit more comfortably on my boot when the highbacks are aligned with the heel edge.
Pretty much feel the same, plus it seems to allows a bit more lateral movement without being uncomfortable.