Not to add fuel to the fire (pun intended
) but the guy I buy my hickory and white oak from also supplies the local restaurants who buy the wood by the dump truck load. I was talking to him and he says a lot of the restaurants burn green white oak with their seasoned wood. They claim that it adds a "vanilla" aroma to the smoke.
I have to be honest, I haven't tried it yet, but I will some day just for the heck of it.