Ryou is advanced AoA.
Did Hyou teach Luffy advanced CoA or just normal CoA when he said those words?
Anyway, Zoro learning advanced CoA in Alabasta is confirmed. The description fits: advanced CoA makes its user ignores target's durability.
Zoro from failed to put a scratch on Daz's body, to being able to 1 shot him, ignoring his steel skin / durability.
No
Advanced COA is penetrating the enemy interior. Luffy learnt both normal Ryou and Advanced....
What Zoro showed was normal Ryou. He developed CoA, and was able to cut through Steel. Not ignore its durability. Zoro doesnt have interior penetrating Ryou.
No I'm not lying clown.
Luffy wanted to do basic ryou.
That's what luffy said was ADVANCED
That's what hyou could do
That's what hyou explained.
The internal is another step.
Too bad Hyou said that all he taught Luffy and could teach him was normal CoA. He says Ryou = haki. Which is true....because Ryou is haki that extends from the body.
Something Raisin, Smoker, Vergo, etc can do. Good to know that you believe all of them have Advanced CoA.