I was able to finish the whole Itsuu combo: 5B, 5C, Itsuu C, j8Chun, 5B, 9BCD, air dashC, 6C, Tsubame, 6C, 3C, from near half screen. 2C works on some of the characters like Ragna and I've discovered that it works with the input: 5B, 5C ItsuuC, 5Chun, then 2C works~. For throw I use: 4throw, ItsuuA, 2A, and 5B instead, so I don't know if "ItsuuA, 2B, 2C" is better but the only combo I'm still having trouble with is that 3c[m] combo.