via YouTube (ClearLamp channel)
Yomi, arguably the strongest Sion player in Japan now, showing us 19 minutes of how to play and win with F-Sion and H-Sion. His playstyle in this video is almost flawless: he makes zero mistakes while maximising his opportunities to create openings. And the only reason why he lost to Hisui at the end was due to some bad luck against the timer.
I’m trying to analyse and understand why Yomi chooses to switch his moons when facing certain characters:
1) He does not want to face F-Nanaya and F-Kohaku with F-Sion, possibly because both characters have slightly better and longer ranged normals compared to F-Sion. H-Sion has better damage off her hard knockdown combos, and because of reverse beat, has many ways to hide her nasty 6B overhead (which on hit, leads to another knockdown into mixup). The key to winning with H-Sion is to get a hard knockdown combo in ASAP, and then vortex your opponent to death with her ambiguous mixups.
2) He does not want to face H-Satsuki with F-Sion, which is probably the right choice because I have fought near-countless F-Sion vs Satsuki matches and have always dreaded the encounter. Same reasons as explained above, get hard knockdown quickly and win with her vortex.
There is no hard and fast rule on when to use F or H moon. F-Sion is simpler to use, can afford to turtle and relax at neutral, and has slightly better damage because of her double j[C] combo loops. However, she cannot reverse beat, so her pressure strings become heavily reliant on normal resets, redashes, or possible frame traps. Use H-Sion if you want to win with mixups and rushdown pressure.
I really need to finish learning C-Sion.