I never thought of using 6c like that, it definitely beats any attack and hits low (not low or foot attribute), not sure about mids though, I think back in my experimental CT days I got blown up for trying to use it like that.
I don't think that 100% curse is possible from 5a > 2a, the pushback was always too big when I attempted it, and the 2a one is also very hard, I only recall pulling it off consistently on Tager, we should determine the character specifics of that combo first so we can accurately tell who it does and does not work on.
I'm sure I added 2c RC and j.c FC.
2b, I'll get to work on.
I'll add CA and the corner combo if I haven't already.
I also need to test the gold burst combo. I don't know what it is, but it doesn't work that well in CSE and I've yet to pull it off right since CS2.