It actually hits on some crouching in CS, I think. Need to check again, though. Can't say for sure.
Edit:
Checked some stuff out, so....
j.c does not hit on all crouching. It's probably character specific, but I don't know who it does and does not hit.
6a sucks in comparison to its CT counterpart. The timing is quite different for landing it, and it will clash with a great majority of Tager's aerials. Still viable as an AA, though.
2c is more useful than before, but the extended horizontal range still isn't useful against the longer-ranged melee attacks some other characters have, and the recovery still sucks. You can use it to go through Hakumen's new 4b, for example, but chances are that you won't hit him (I've used it more than halfway into his sword before and not gotten a hit) and if so, he can just do it again and CH you.
6b is useless.
Anyway, couple combos below, most start with j.b j.c 2d j.2c. It's worth mentioning that while landing that j.2c as a level 3 in CT is fairly difficult, I land it 8 out of 10 times in CS. Not sure if there's actually a difference or it's just a matter of practice, though.
I haven't gotten used to the idea of 5cc wallbouncing airborne characters, so I've not really used it much for that purpose, yet.
6a 5b JC j.b j.c 2d JC j.2c (registers as a level 3 hit) land, 66a32146c 236a 3c 214c 3c 214a 'oki'.
The above combo does a bit over 3k damage.
You can switch out '3c 214c 3c 214a 'oki'' with '6c j.c j.214c', too, for around the same amount of damage.
Forgot to try doing 236a twice.
6a 5b JC j.b j.c 2d JC j.2c (combo drops, hits them on tech, registers as a level 2 hit) land,
66 6a 5b SJC j.b j.a j.b j.c JC j.b j.c j.236a
This one comes close to clearing 3k (or clears 3k, not sure which, as I don't check damage values in the middle of a 'two-part' combo). Probably will only work once or twice, depending on whether you've been using the legit version a bunch or not.
6a 5b JC j.b j.c 2d JC j.2c (registers as a level 3 hit) land, SJ j.c JC j.c j.236a
Does ~2k (2.2 or 2.3k, if I remember correctly) damage, and can be combo'd off of a 2c CH or a 6a/6a CH.
5b 5cdc 214a dash 2b 5b SJ 8d JC j.2dc (level 3 hit) land 632146c 236 6c j.c j.214c
Absolutely not worth it to do this combo. Takes 3 wind and 50 meter and either doesn't hit 3k damage or barely eeks it out, depending on how you start it.