I swear to god this combo is possible:
2AA 5B 5C 4C 5A 6AA 5A 2C 2A whiff 5A 2C 2A whiff 4C 623B 5A 2C 2A whiff 4C 623B 5A 2C 2A whiff 4C 623B.
I swear.
Farther I have gotten is the second 5A 2C 2A whiff before the first 623B, forgot to do 4C, did 623B instead, and dropped the 5A after landing.
EDIT:
I want to make a CMV of this shit.
2AA 5C 4C 5A 6AA 2A 2C 5A (whiff) 2A 2C 5A (whiff) 6AA 6C dash 2C delay 623B 5A 2C 2A whiff 4C 623B 5A 2C 2A whiff 4C 623B.
Feasibly possible, works only on Sion TATARI, Nanaya, Ciel, Sion, Akiha, Akiha Vermillion, Mech-Hisui, Seifuku Akiha, Hisui, Kohaku.
Midscreen only, obviously. 5A 6AA 2A 2C 5A whiff 2A 2C 5A whiff 2A 2C 5A whiff works on some of those above characters, not on all of them though.