Hitec HS-82 MG Why change a good thing? In the case of the 82MG, just to make it that little bit better. Hitec has done it again, they have replaced a popular servo with an improved design which is sure to be as popular if not more popular. The HS 82mg is the replacement for the HS81 MG. Fast, good torque ( similar torque to a standard size servo!) and metal gears, what more could you want!