Anyways....
Oda implied that Oden used COC in this attack, Tougen Shirataki, not Tougen Totsuka, although it's obvious that Tougen Totsuka also used COC too (at least the one who scar Kaidou). And this attack doesn't have black lightning.
So I guess same as COA attacks, there are levels to COC attacks too. Regular COC non-black lightning, and Blacklightning COC attacks. Zoro is the former because he isn't familiar with his own COC yet.