It would be a better way of controlling the Invited and At Large births. Plus it would allow teams to play in more then one PGF event. After all when you get down towards the end of the summer the teams are scarce. tournament with 4 teams playing for 2 bids is not much fun to watch.
Maybe add a points system a win gives you x points to help you secure the top spot.
Remove the byes have a points system top team plays a bottom team in points.
sorry.. rambling.. too much coffee