Your right about sasuke being the best with amaterasu so he learn how to control the flames my point is if he lost or didnt have the sharigan he would not have blaze release because it depends on the sharigan right unlike lave release and wood release does are made by mixing both ur chakara...
I respect your opinion man im just saying if he didnt have the sharigan he would not have blaze release so his real kekke genkei is the sharigan blaze relase is a power granted to him when he unlocked the mg lave reales its a kekke genkei because she uses both of her nature chakara to form a new...
To answer that have you not notice by now that not all sharigan techs are the same and kakashi has only one eye plus he is a non uchiah so he cant be compared to the rest
He does not have a second kekke genkei apart from the sharigan because the blaze release is a power granted to him from the sharigan with out it he would not have it
I mean the reason why his sharigan drains his chakara is because he is not an uchiah why doesnt he implant some uchia dna them he would not have that problem maybe he would be able to turn it of and on like all the other uchia's what do you guys think