I don't care about Zoro having Conqueror's Haki at all. I mean, from what we've seen so far, its only use is to take down people who are way weaker than the user… Meaning that it wouldn't be that much of a power up for Zoro, he's already more than capable of dealing with fodder pretty fast.
so was luffy i think Conqueror's haki can do a lot more