Well I think I finally found it. It needs a j.C to hit over the 5k mark though (total damage 5511 on F Nanaya).
j.C 2A 2B 5BB 5C 2C j.236B > 5A 22A > 2C 3C 6AAA 214A > j.BC > dj.BC air throw
It's really easy to pull off compared to the Fuusui knife-pick up combo (which I just completely went past). I can't get the timing for the life of me since it's so ridiculously tight. That particular combo goes something like this:
2A 2B 5BB 5C 2C j.236B > 5A 22A > 2C 3C (pick up knife) 2A 5A 22A > 5C 3C 6AAA > etc
Probably worth the damage, but not worth the trouble unless you're a combo professional (or Japanese).
Other combos that I've been working with include:
(midscreen)
2A 2B 5BB 5C 2C 5A 22A > 2C 3C 623B > 623 C > 2C 5C 5BB > j.BC dj. BAC 236B
For some characters like V. Sion you don't need to do 623C, as another 2C will hit again fairly easily after the first 623B. Don't know why it works like that, it just does. I think it works on Satsuki and Akiha too. Might have to test it again.
If you don't have the meter to spend or a knife to throw, you can use two alternative midscreen combos. The damage on both is around 3.8k and leaves you and the other person in two different situations: a forced knockdown, or against the wall.
2A 2B 5BB 5C 2C 236A 236B (cross under) 214A
This one gives a forced knockdown. Follow up with j.236B for lulzy which-way guessing games. You can also continue it with 236C > air combo if you feel like finishing them off, since that OTGs.
2A 2B 5BB 5C 2C 6AAA > j.BC > dj. BAC 236B
This one pushes to the wall, but has no forced knockdown. It does more damage, however, as a simple staple. Use at your own discretion. You can forgo 236B for 22C if you have the meter to extend the combo with 2C 3C > whatever for another forced knockdown.
And lastly, I'm hearing stories on 2ch that people are getting fed up with all the Full moon Ryoug players and are beginning to focus their attention on Half, lol. Someone discovered a knife pickup throw loop too. I won't believe it until I see it in a video though. Might be too good to be true. But if it is true...