Are you talking about WS NSS A+B? I can't really test anything at the moment, but 66B, GS KK, and 2A+B are the standard followups. 66B tech traps into the 33B6 -> GS KK combo. GS KK is for guaranteed shorter range RO or wall combos, and 2A+B for soul charge wakeup.
On another note, do we have any extensive details about CH 22_88AB? I usually do 2A+B as a followup, which I assume is the standard. It seems right techable for most characters (like every other NM move), in which case 3B seems to work. 3B as a followup also seems to launch in some cases, but I'm having trouble replicating this with consistency-- it's probably character specific, has to do with the axis/alignment, or some kind of discrepancy with the training mode settings.
I skimmed through some of the threads in here and didn't see anything listed so I thought I'd bring this up for discussion.