After 2C 236a, if you did enough hits in your combo before that to increase the gravity, you can do 5a5c. You need a slight delay before 5a though, but it can be done quite consistently with practice. This will make it easier to do an aerial with jb as 5c has more hitstun.
I also see no use for 214a and 214b whatsoever. Both are extremely minus on block, can't be used in (practical) combos and although 214b charged is overhead, it's super slow and if it's blocked, it's even more minus.
IMO H's pressure is different than C's but still weaker. H's 5c can be sorta used as an anti-jump in blockstrings. His 236a comes out and recovers faster, but I think it's still -1 or worse on block. Although H's 2a hits low, it's 7f and has shorter range than C's 2a, not to mention almost impossible to hit airborne opponents with ie bad for OTG. I guess he makes up for that with a 3f 5a (lol 3f). But even that sucks because H's 5a has worse whiffing properties (I think it has more recovery than C's. Can't check now). All in all, H's pressure is worse, but works differently.