An agricultural tractor control system comprising an electronic control unit is provided in addition to a method of controlling a tractor. During operation, the system continuously monitors an interarrival delay of packets received from a sender over the network link. Also provided are polynucleotides which encode ERCoA3 or block translation of the mRNA which encodes ERCoA3. At least some of the approximate circuits are to generate an output value different than the reference circuit for one or more input signal values; however, for each possible input signal value, the majority values of the one or more output signals generated by the approximate circuits and received by the voter circuit correspond to output signal result values of the reference circuit. The kit can further include a filament for directly or indirectly anchoring the movable dispensing component to the elongated container. Furthermore, when one module encounters portions of the script that are somewhat time sensitive, the module will pause execution of the script and wait for execution of the other script to catch up.