Well, if she ever goes into flight you can boulder on reaction. Due to the loop she does, you will still hit her even if she does mace charge assuming you reacted fast enough to her being in flight. Boulder actually shuts down a lot of her air zoning options, and between that and FB, she is forced to approach you.
Now HG has a solid rushdown game. Her WoE pressure can be nasty, and many HG's will use WoE at the end of blockstrings to make themselves safe and continue pressuring you. Unfortunately for her, this doesn't work on Sinestro. If you B13 when she starts WoE, you actually move with her and when her WoE invulnerability wears off, she finds herself standing in a B1. Now admittedly, she can do Mace Charge at the end of her blockstring as well, but if you're holding back for B13, you can actually just input the B1; if she WoE you hit her but if she mace charges it actually hits before her previous blockstuns wear off so the move doesn't come out and you stay blocking, but now you're back to a neutral position.
If she takes to the air near you, D2, standing 3 and DF2 are amazing AAs against her. If she's trying to do divekick shenanigans to you on wakeup, just wakeup with DF2 and you'll win every time.
And oh god when you get trait she has literally 0 safe options anymore.
