Blair-
First, are you sure you were looking at the championship event and not the scholarship event?
Second, the NDCA has a shovel full of rules that the comps do not necessarily follow. If amateurs were more aware on the whole of the rules, then they would find many disparities at most comps. I have come to think of the NDCA rules as "guidelines"...yeah, I know that doesn't seem right, and it can be really frustrating too...but comp. organizers are an independent lot and tend to do what they will.