Why, thank you for the reply. However, I was talking about the 5C after 2C>j5Cx5 and into Jakou. I never really had trouble with the first 5C after the relaunch. But I think I got it now. Also, only its first hit has to land to properly link into Jakou? I'm having less trouble with it now that I do it that way.
And I'm relieved that 3C is actually tight and it wasn't just me sucking at it. Even though what you said about how close Jakou is, seems to answer my question above about 5C hitting once or twice, since it HAS to create more distance between you and the dummy if you do the second hit, no?
For your question Beening, I've had the same problem until the other day. Just hold 9 during Jakou and be patient. If you get it to land a few times but then you do 6D instead of j6D because you thought the timing was correct, try holding 9 a little later.
It sounds kinda dumb, but it seems that I've memorized how long I hold 9 and not when Hazama actually jumps, so when I sometimes start holding 9 earlier, I press 6D before Haz jumps.
There don't seem to be any real tips here, so I'm throwing whatever comes in mind. Just practice until your wrists go numb.