I still like the "idea" of National Duals. Right now, a "team" with 5 champs and 5 terrible nonqualifiers will win the NCAAs. It would be nice to give some credit to true great top-to-bottom teams. Okie St has a great team top to bottom this year, but still won't get past PSUs few studs (though PSU does have a pretty solid team this year [not counting 133]).
I would like a National Duals tourney in Dec or January with 8 (maybe up to 16) teams. Teams get a score heading into the traditional NCAAs based on their placement. Say the 1st place team starts with 20 points, 2nd gets 14, 3rd gets 10, 4th gets 7, etc. Teams outside the top 8 are really only fighting individually anyways, so this really only significantly affects the top 5 or 6 teams. This would make the dual championship worthwhile and important and yet not take the excitement away from the traditional NCAAs.
So if OSU beat PSU in a national duals tournament, they would start the traditional NCAAs in March with a 6 point lead - might make things even more exciting.