A safety fastener for mounting fitting equipment such as suspension and retention systems onto a ballistic helmet. The method includes counting pulses emanating from an engine of a motor vehicle. The tomatoes may be cut into two or more pieces, bruised or abraised before infusion. The first ground internal electrode includes a first ground lead portion electrically and physically connected to the fifth terminal electrode, and a second ground lead portion electrically and physically connected to the sixth terminal electrode. For each modified cell in the topological order, a new output delay and a new output ramp time are computed and compared to the original output ramp time on the modified cell. Other embodiments are also described.