Stax,
I like the points idea. What a good way to encourage teams that are losing to keep the dream alive. It would be interesting and ironic if during a late stage game it came down to not which team won, but whether one team could get to 5 before the other team got to 15.

As for playing 7 games over 3 days, that's just fine. I've played in tourneys where you play 7 games in 2 days. If you have 3 days of play available, I would actually probably have 8 teams qualify for quarters on the last day. That's only 3 games in the final day for the eventual two finalists, and less for those that don't make it that far.
My 2 cents anyway.
Good luck!
- Seppo #22