Good microservo's have a surprizing amount of power, don't skimp in this area or you'll be paying for it with a crashed plane. I bought a bunch of cheap ones early on thinking I'm getting a deal only to be paying for it in crashed planes due to malfunction, glitches, lack of response and torque. If you are shopping for the radio, look at the radio's attributes alone, the rx and servo's normally given with them as a package are not necessarily always top of the line and you'll likely have several sets of them through the years while keeping the same radio.