MC is just painfully bad on a hunter. You can easily do more DPS on foot and have many more skills to work with. The only down side is that you need the mount to hold up to the attacks you receive. A majority of the time, I do mounted instances on foot if I can.
I know I can do the mounted hytbold dalies on foot 50% faster than mounted with a hunter. On my guard, it's just annoying. My captain is the best with MC only because I get more powerful ranged skills whereas trying to run up to something and hit it when it's mounted is impossible.
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