"hardware must be released before the compo starts, you will have to wait for Round 2 to use the 5800x3D "
Isn't round 2, well, round 2 of the same competition? If so, how come 5800x3D will be allowed. If not, then, that implies that there can't be an overall winner, but only winners of individual stages, which defeats the purpose of having a competition with stages.
Personally, I don't really care if it'll be allowed or not, but what I care about is vague and/or contradicting rules.