I've been searching the internet for a clear explanation of the NPC competition structure...the levels, qualifying, etc., and I can't really find anything. What are the levels of shows (local, district, state, regional, etc) and how do you advance from them? And what is the difference between nationals, jr. nationals, usa's, jr. usa's, north american, etc? It's all so confusing...if someone could explain it, I would be very grateful.