There’s a possible weakness to Kaido ok! But first lets go to what might be a possible scenario that will happen, theres a chance that kaido will give luffy a free attack because of what happen to cp-0 interfering them… this is similar to what Kataruki did when somebody interefered in their fight.
I think the possible weakness of Kaido was the scar that oden gave to him, because of oden the rough skin on that part is gone so if luffy use his ultimate attack on this part there’s a chance that kaido will got knock out or sent flying at the same time..
What do you guys think?