Uh, Unitas, this is a UU discussion about Mienshao, not OU.
Also, you should never use a Choice Banded Mienshao when it has Regenerator in combination with Life Orb. It should never really even enter the discussion when it's inferior compared to the Life Orb set. Reckless is a useful ability for Scarf Mienshao for revenging things you can't do with Regenerator Scarf, such as Raikou, Kingdra, and Flygon, so no, it's not a bad ability on Mienshao at all.
Taunt does not shut down Gligar at all, and Mienshao is better off heavily damaging Gligar with HP Ice instead of maybe getting a free switch in on a Taunted Gligar (which probably won't have the same payoff as denting Gligar with a LO HP Ice). Also, for the last time, Fake Out is a TERRIBLE option for Mienshao, because all you do is grant free switch ins, and it provides pitiful damage output unless the thing you're up against is a Sharpedo. You also give up a coverage move in Stone Edge or HP Ice, both which are useful for hitting common switch ins.