wow, your butt and ribs got nailed. that sucks. i guess (i really don't know) that it is whatever the mood the judges are in? did they taste your ice cream because its real good.
Don't change a thing... Sometimes there are just bad tables. Look at the scores across teams, or request the table cards... so you can see how the table fell in general... will let you know if it is just you, or a table score trend.
It happens to all of us. I know your food is solid.