5c has more blowback but less float than 2c, so if you instead do 3c RC > 665c > 2c > late chain 6c, it should give you a good clean 6c hit on just about everyone.
Also, the second hit of 6b is +19 on air hit after the recovery ends, so you can link things like 66~5c > SoD > 66~~~~~, which will almost ALWAYS cornerbound them, she just runs fast enough.