Michelle,

To answer your question on the allocation order is;

1st     Primary to Primary
2nd    Primary to Alternate (Inside)
3rd     Alternate to Primary (Inside)
4th    Alternate to Alternate (Inside)
5th    Primary to Alternate  (Outside)
6th    Alternate to Primary  (Outside)
7th    Alternate to Alternate (Outside)
8th    OverRun / Interuptible