Described embodiments include a system, apparatus, and method. The first CDAC block receives a first digital signal and converts the first digital signal to a first analog value. A second end of the shaft and the distal end of the extension member terminate in a head adapted to grip a surface and resist lateral movement. The protective device 104 preferably includes a shear-relief portion 302 formed such that the front of a hoof has minimal contact with the device 104. Next, a first copper foil, a first adhesive layer, a second copper foil, and a second adhesive layer are laminated on the PCB substrate, and the first and second copper foils are etched to form circuit layers.