Unless you provide actual proof for why its 30 minutes, it's headcanon.
LMAO stop acting dumb. Ive gone through it many times now.
My argument is that Kaido already acknowledged that Luffy can reach that potential of using advanced CoC but will not do so because he is too injured now and his life was about to end here. Kaido never expected Zoro to do anything close to that, which is why he took the hit without dodging. The moment he realized otherwise, he acknowledged Zoro as a conqueror.
And when Zoro told him that he doesn't understand what Kaido's talking about, Kaido realizes that Zoro used it unconciously and by accident, just like how the entirety of Marineford understood that Luffy's usage of CoC over there was by accident.
It has nothing to do with Luffy since he already acknowledged Luffy's ability to reach those heights when he compared Luffy with those 5 Pirates.
Here's a simple rundown so you don't twist my words.
Chapter 923/924 : Kaido acknowledges Luffy as a CoC user.
Chapter 1001 : Kaido acknowledges Luffy as a potential adv CoC user when he compares him with those 5 pirates.
Chapter 1010 - Post Asura : Kaido acknowledges Zoro's ability as a CoC user and a potential adv CoC user, although he used adv CoC by accident, which he very clearly communicated to Kaido when he said that he has no idea what he's talking about.
Chapter 1010 - Dead man Walking : Kaido says something along the lines of "Luffy's potential is gonna be wasted because he's already at death's door and I'm gonna kill him right now."
Well it didn't. So if anything it's your headcanon (that air slashes should have scarred him) that is wrong since Oda confirmed in that SBS (thanks for correcting me) that Kamusari was infused with Conquerors.
You do realize that the term "advanced Conquerors" is entirely a fan made term and the official term is infusing Conquerors into attacks right?
Oda very clearly talked about how Kamusari and Togen Totsuka were infused with Conquerors in SBS 100.
You can draw your own conclusions but it was canonically stated in the manga that Kaido right now is a lot stronger than the one which Oden fought.
The Japanese raw for 1012 uses the kanjis for several "数" , ten "十" ,minutes "分" earlier 前 , in the page where Law and Zoro fall and are caught by Sanji. Several 10s of minutes, is by definition more than 10 minutes, and most likely more than 20 minutes. I would consider 30 minutes to be the reasonable upper bound of this.
Thanks for the chapter break down, it made it easier to understand your (warped) position:
Chapter 923/924- this is the starting line Zoro reached using Asura.
Chapter 1001- Kaido acknowledged him as a PK level threat, not specifically an adv CoC user, he used internal destruction against him with red roc. He didn't have Big Mom on his threat list.
Chapter 1010- You can't be a "potential adv CoC user" if you have fucking used it, you are a confirmed user not in full control, Luffy wasn't in full control after his off screen fight with Kaido, hence Kaido calling him sloppy later.
You think death door Zoro was able to muscle through and use adv CoC, but Kaido instantly after this happened, was under the impression that Luffy wouldn't be able to use it in that instance (but could do so otherwise, which goes completely against the wording he used when he talked about it and how Luffy talked about it himself as something he was understanding for the first time).
Luffy "used" base CoC in attacks against Chinjao, Doflamingo and Katakuri, this is a different level. Something that only the strongest can do, Zoro isn't on taht level, and his understanding of haki is rudimentary when compared to Luffy, as indicated by vague statements "is that the haki hyogoro taught him", "he learned
something". There is a giant fucking chasm of "only the strong", which Kaido excluded Luffy from in 1010, from being able to use CoC in melee, which Luffy did in dressrosa to clash against another conqueror, to be able to infuse it to massively increase the potency of the attack.
I'm not going to argue with you about this anymore as you are too entrenched in your position, it wasn't advanced, it didn't look advanced, it makes no sense for Oda to debut advanced CoC for a non CoC specialist subordinate of Luffy before Luffy (who had to go through the process of being hit multiple times by it himself and have the pre requisite base CoC control and internal destruction haki, three things Zoro has not shown and has no understanding of). It makes no sense for Kaido to be shocked at Luffy having it if his subordinate JUST used it, (while in a state far worse than Luffy himself).