I would prefer seeding over the "extra match". I had data from 10 years ago from the three years I went to CK Kickoff and Tulsa Nationals with Ryne. My data with him, he lost every time he got 2nd and won every time he got 3rd with one exception so 90%. I am guessing their is variation from year to year. Also, it should be noted, Tulsa and all Roller events are seeded and this seeding has improved over the years with the increased availability of information from the internet. I don't think your data is relevant to this conversation.
We are in this for the kids... What good comes from an extra match of this type? Maybe we should go to a true double elimination format?