Whalebone... When I've cooked rib roasts in my 008, I've used very little wood. To me, a rib roast shouldn't have a strong smoke flavor like a brisket. I use about an ounce of white oak, but I also put a few sprigs of fresh rosemay and a few large garlic cloves into the firepbox (I think this was in Stuart's original Prime Rib recipe). It comes out wonderful every time!