Please pardon my lack of grasping the full accounting of what has been written so far.
From this
http://op.pokemon-tcg.com/content/events/faqs/2006-2007/Premier_Ratings_Info.asp
comes this
Invitation “Pass Down” Awards
When POP calculates the final ratings for a given Zone, that rating will be checked against the invited players list. If a player who has already earned an invitation is ranked highly enough to receive a Premier Ratings invite, that invitation will be “passed down” to the next unqualified player from that same Zone. This does not mean, for example, that if a Canadian player who is top ranked in North America already has an invitation, the next Canadian player would be selected. Rather, the next unqualified player from that Zone (from the U.S., Canada, or Mexico, in this case) would be selected.
Let's take the North American Zone, Junior's Division.
Per the FAQs, there will be 12 Junior Invites from NA. OK, so at the US Nats, the top 4 get Invites. That leaves 8. (Let's ignore last year's winners since I do not think they included in the 12.)
If a Junior has both the Points and is in T4 at Nats, the T4 Nats takes precedence. Therefore, do I understand it that T4 get trips, then you remove them from the Premier Rank order and look at next 8 highest point total for the NA Zone to get invites?
Thanks,
P'Daddy