Honestly dropping Kaido to the floor 》》》 Papercut scar.
Like ive been scarched and been scarred by my cousin sister. And that shit left scars on my skin. But if a dude punched me in the face and sent me on my ass...then thats obviously more dangerous.
Essentially Zoro leaving a papercut scar isnt worth anything. He found a way to bypass Kaido's durability entirely. But the size of it is so unnoteworthy its insane. It lacked AP to mean anything. And we can see it in Zoro's dissapointment.