I don't know what came over me, but I decided to try another Normal 1cc of UFO. I actually got up to Byakuren before being clip-death'd by Omen in Purple Mist.
That being said, I had 7 lives going into Stage 4. I had 2 leaving it. I'm fine with the two or three stage deaths, since I just got more resources from the stage anyway. Murasa, however... Clipdeath on her first nonspell (which was shameful), anchor'd on first spell, clipped in Deep Vortex, clipped on last nonspell (I think), died on that last time-out spell. That or I died twice there. I'm not fast enough to deathbomb, apparently.
Shou gave me less trouble than Murasa. WHY.
Also, this time I tried with SanaeA, and it sorta feels like I'm not doing something right...I can't quite place it, though. Strange.