The rachel in this set of videos uses what appears to be a combo for some extra damage involving 2x lvl 2 j.2c.
Basically he goes into lvl2 j.2c from 5b very early in a combo, then when he lands from the j.2c he cancels to 5b, catching the opponent on the way up, SJC's it and does another j.c into lvl2 j.2c.
We'll have to test how difficult it is vs midscreen combo into 5b (frog hits).