I've just played the match today. I found myself using running 5B, zoning with some movement and jC's...and near the end I definitely stopped using 6B[m] because it appears that he was running under it or something.
Otherwise, most of my hits, if not from counter hits were from running 5B, and jB's from air dashes or double jumps around and stuff.
I'm not a good player by any means, just thought I'd share how I land hits.