The "red arrow days" are because they cut all lines below guarantee to prevent lineholders from flying over block, and thus save money. The unintended consequence of this was that they created more lines, and thus had less reserves available, creating the low coverage ("red arrow") days.
As said above, we are not understaffed. When we are understaffed, you'll see lines at 85-90 hours, reserves hitting 75, and people getting extended and junior manned on sunny days.
Expect to see slight improvement in May and much improvement in June. Don't expect to see recalls until late Spring 2010 if at all.