I've seen videos of people doing something similar to this combo.
IAD > j.B > j.C > 5B(2hits) > 5C> j.B > j.C > j.D > 214B
How do you connect 5B(2hits) after that j.C? I can't seem to do it.. most of the time only 5B(1hit) hits, or if 5B(2hits) does hit j.D won't hit the opponent.