@Sigmapolis fact or fiction?

8-9 looks to have about a 5% to 10% chance to make the Sweet Sixteen
12-13 looks to have between a 5% and 15% chance... #12 much higher than #13, which makes sense considering #12s are generally bubble teams while #13s are generally AQ teams, the best AQ teams, but even then the best AQs are pretty far behind the worst bubble squads... so I'd say true but with some caveats
Seems the #12 path is a pretty "efficient" one to the second weekend

