This invention is directed to Bacillus mutants which produce a factor which potentiates the pesticidal activity of a Bacillus related pesticide, a chemical pesticide andor a virus with pesticidal properties. Programmable delays are connected into the signal lines providing the control signals, so that the time relationships between the control signals can be set reversibly via a soft set register or irreversibly via fuses. The first and second pedicle screws each have a shaft provided with a threaded portion operable for threading engagement of the first and second pedicle screws with a first and second vertebra, respectively, each shaft also has an engaging portion. A Z-axis conductive adhesive film is used to mechanically and electrically connect the HGA with a distal end of the PCB actuator arm. A lower spacer is connected to a surface of the mesh grid opposing the backplate to be supported by the backplate.