Thanks Shameless, I do EQ, but haven't considered the opposites thing, that seems like an interesting idea.

Looney:

Yeah it is a fairly common recording technique as far as I know. I think Lennon did it almost all the time, and many others. It doesn't necessarily make your voice better but it seems to add depth and body to my vocals. A better mic might make it not necessary but I don't have one. It just sounds different.