I'm not sure about your first question because i don't do that combo but for your second question you would cancel into 214a immediately after hitting them with 236a.
Good games to everyone I played today, @p4uplayer your mitsuru makes me salty as fuck, but you're really good and I respect that
I should learn more about fighting mitsuru, usually I'm always afraid to attack and end up getting hit with coup d'troit