I know Catsuki has that 5[C] 2C whiff 2C thing. If 5[C] hits, 2C whiffs and recovers in time for the second 2C to hit so you can go straight to bnb. If 5[C] is blocked, well, they have to block an airtight 6f low now. Basically, you confirm an overhead without thinking about it. Can't semi-charge the 2C, though.