I bought a bunch of these servos about one year ago and they were great. Speed control needed some minor calibration, but that was expected. Hardware calibration was done with a flathead trimpot flush with the rear of the casing. However, I recently ordered these same servos. Now, the trimpot has been moved far inside the servo housing, and is a phillips head. A small philips had to be inserted through a small hole in the casing to access the trimpot, which was mounted at an awkward angle within the motor. It was much more difficult to calibrate, and thus use, these servos. Otherwise, the servos have good speed and torque, capable of driving a small robot. Wires are slightly weak and prone to breakage if appropriate strain-relief measures are not taken.
