Of course you've seen all the predictive metrics above for seeding, but from a historical perspective, how often does a team achieve a certain tournament seed based upon their record to date? The below chart covers that question:
Teams that start 2-7 or worse have always played in a PIG.
Teams that start 3-6 have avoided a PIG 35% of the time.
Teams that start 4-5 have avoided a PIG 50% of the time.
Teams that start 5-4 have avoided a PIG 83% of the time.
Teams that start 6-3 have avoided a PIG 96% of the time.
Teams that start 7-2 or better have always avoided a PIG.