You mean i16 LOL. Mitsu BB +4 into i16 :236B beats an i13 2A.
I have a pretty good success rate with Jaeger's method: 236(B) as soon as your buffer window starts, then hold A then hit K and release.
back to maining Mitsu...
You can also use it to punish things at -16.
For example mitsu's 2kb on hit, algol's 1a on block, leixia's 33bb on jg.
Still don't think it's game breaking.
P.S. Getting it to hit off axis is pretty hard. Try ssl 3b, 236(b) against Pyrrha for instance.