I agree with the previous poster that Mao's 3A appears too inconsistent to be included in SP. She got the full credit of 3A only once this season (4CC) and once in the previous season (Nationals). I hope it gets better next season. But in the meantime, focusing on fixing flutz would be the first priority.
Yukari seems to be good at landing jumps, by which I mean she barely falls on any jump. IIRC, she at least landed all 3A attempts this season. But she URs. So it may be a bit risky. But she URs in a lot of other jumps as well. She also got the edge call on her lutz at least once and clearly doubled it at least once this season. So I don't know which is better. For her, it may be worth taking the risk.