All right, time for real advice, before all of my secret tech is revealed by Kriegdrache.
In addition to air throws, you are on the right track with these two. But don't forget about 6B, Tsubaki, Hotaru, Agito and that you can still do Renka (1) > Kishuu > 6C > stuff in the corner off things like 2A and 2B.
I haven't had a chance to try out that Agito oki.
You also want to master OD damage, so you won't need to open them up as much in the first place. You can get a lot of damage just from playing neutral.