Hornkeeper,
Your 4x400 theory is interesting for 6-man. At the TAPPS 2A state meet, 4x400, Dallas Covenant first (3:34.42), Boerne Geneva second (3:34.61). The race was much closer than the state football game. I would say mostly to do with the fact that one DC RB won the 100 and 200 and the other RB won the open 400, not to mention the other 7 or 10 seniors and great coaches. Geneva had no one place in the 100, 200, or 400.
Side note, state meet was awesome. DC won state boys track on last race. They were ahead on points coming in over Muenster Sacred Heart, but coming in to 4x400, Muenster seeded #1, Boerne Geneva #2, DC #4. If they finished how they were seeded, Muenster wins. DC came from third position on final leg to take lead with about 20 feet left in the race.