If that happens I will change my mind.
- His expressions of shock and surprise witnessing Luffy's attacks.
- His comment on Luffy's attacks actually being effective vs Kaido (as contrasted with his own ineffective attacks).
Nah, it's not about the type of haki being used. It was about Kaido seeing Oden in the Scabbards:
- Zoro's attack was still the only attack Kaido acknowledged this chapter.
- Mama also acknowledged it.
- Kidd, Killer and Law did nothing to him.
I changed my mind on Zoro pushing him to Hybrid because Kong Gatling was effective, not because Zoro's Tatsumaki didn't seem to be the catalyst. It's more like Zoro and Luffy together pushed him to hybrid.
P.S: Zoro save Luffy 4 times:
- Mama's Cognac
- Dragon!Kaido's Chomp
- Dragon!Kaido's Tornadoes
- Dragon!Kaido's Wind Scythes
P.S: I'm only more confident that Santoryu Zoro beats Dragon!Kaido. He can counter his entire offensive arsenal, and significantly hurt him with a mid tier attack like Kokujo Ou Tatsumaki.