Mao was not very consistent with her flutz. Don't you remember 08-09 season when she continually did a messy 2flutz in her SP? It happened at 4CC and Worlds and maybe some other competitions too.
That was when she started fixing her flutz.
Starting from the 2007-2008 season, they started to dock off points for flutz. She used to do 2 lutzes per long program, and then switched to 1. Before the rule changed, she almost never missed her flutz.