That's kinda what I've done a couple of times on a bass guitar. That way I keep the low frequency energy in the center, while moving the upper-mids and highs a bit off center to make the bass stand out a little better. This is handy in a dense mix for making the bass have its own place while retaining all its "oomph". I've never done this in an extreme fashion, just a few degrees over to push it out of the way. It's weird how, when done right, this makes the bass seem a couple db louder when it's really not, and it still seems like it's centered. It's just about finding that one little niche in the mix where it'll fit and not be masked as much.