I just pulled off a UFO Normal 1cc with ReimuA. I had been trying for ages with MarisaA, but when I tried someone else it worked much better.
For me it was sort of the opposite (for my first clear).
I ttried with SanaeA, didn't like much, SanaeB, kept dying, ReimuA, kept failing stages, ReimuB, almost cleared several times, and then I randomly tried with MarisaA, having never seen either Marisa shot type used.
I 1cced.
90 FPS phantasm is something I know I can do now, I just need to not derp with bombs in stock. Got to (and captured) Ran before failing to BoHaY. Went to IN spell practice and dodged the first 6 waves of Yukari's Last Word at 90 FPS, so I can count on a Bounded Field capture, leaving only BoLaD to worry about.