Why does the Acne preset use a 72.48 duty cycle and Cold Laser shell preset use a 50 duty cycle?

The Cold Laser Acne Preset replicates scientific studies that used a series of laser pulses at that precise duty cycle and frequency. The generic Cold Laser Preset is designed for applying database frequencies. The Offset is a hardware requirement of the Cold Laser. This setting should be used for all Cold Laser Presets.