Chinjao previously hyped Teach having CoC, with Red Lightning its almost confirmed. Saturn having CoC is almost confirmed as well since his peer Topman having it.
This thread aged terribly
Saturn's lightning was confirmed to be visible by fodders and they even wondered what it was => Oda has never stated haki lightning is visible and fodders usually can recognize CoC
Teach's lightning in the anime was also used by Law in the same episode when he broke out of Doc Q's power.
I do think BB should have CoC mind you but those tiny asses lightning bolts aint the confirmation you're seeking.
Saturn's lightning was confirmed to be visible by fodders and they even wondered what it was => Oda has never stated haki lightning is visible and fodders usually can recognize CoC
Teach's lightning in the anime was also used by Law in the same episode when he broke out of Doc Q's power.
I do think BB should have CoC mind you but those tiny asses lightning bolts aint the confirmation you're seeking.