Black lightning not mean always to use adv CoC stop pls this headcanon.
Kaido get hit manytimes by Luffy, when he ever said anything based on CoC?
Zoro cut ones Kaido, yet Kaido didn´t say anything about CoC.
You wanna tell me Zoro who awake barely CoC give Kaido enough fear to mentioned his CoC but Luffy who hurt Kaido multiple times never get stated by Kaido to using CoC? All of people Luffy who mastery CoC or even adv CoC?
Adv CoC doesn´t mean always to have BL, the BL could be a effect of both CoA+CoC.
In case Kaido fear Zoro even before he get slice with Ashura, he see him and directly try to attack him.
At the top he mentioned Zoro CoC because of his attack, with means=Adv CoC.
Or can you prove that Luffy who have mastery in CoC was ever stated by Kaido to use CoC in his attacks, I wait.
Only few characters getting this adv CoC, I assume guys like Garp,Mihawk,Shanks,BenBeckman,Rayleigh from current era.