BBQ2U,
Notice a couple of questions about contests, you thinking of entering?
Appearance, in KCBS, is first thing you judge, and once you score that, you can't change it after you pull it out of the box. And like Grits said, the bark is on the bottom, so show that part.
My recommendation is to take a judging class. You'll ask lots of questions and until you do a few contests, or hang out with some cooks, there will always be questions.
There are usually some pretty good folks at contests. Anytime I'm having a team, I'm happy to talk, gives me something to do.