The only time Mao had "ratified lutz" was when ISU didn't really care about wrong edges until 2006-2007 season in which Mao had way more serious flutzes. When they finally did, she had no longer "ratified lutzes." You should really look at the facts before you claim something that isn't true.
That is not true. She hada ratified 3Lz with good edge at 2008 NHK trophy and at 2008 Grand prix final, both in the short program. That was in 2008-2009 season when she worked in the summer with Tarasova. Next season she completely abandoned the jump and focused on the 3A and by the 2010-2011 season she went back to her old habits. She does try to correct the jump and some reports claim the jump does look better in practice but in the competition it's not working. So I agree with the posters who say she currently does not have the jump. You should also check your facts before contradicting someone IMO