Replying to JOI 2011 question

Jon set up a new judging format this year that looks great. I only have one question about it though.

Qualifiers

-30 skiers take 2 runs, best one counts, 10 move on. (+ 2 wildcards)

Finals

-12 skiers take one run, top 10 advance.

-10 skiers take one run, top 8 advance.

-8 skiers take one run, top 6 advance.

-6 skiers take one run, top 4 advance.

-4 Skiers take two runs, best one counts.


What if 5 out 12 skiers fall? how would the judges decide what 10 advance?