The fluidic corrugation on-demand noise reduction technology has been extended to military-style nozzles with 6 fluidic corrugations. Measured far-field acoustics for jets exhausting from a 6 fluidic corrugation nozzle are compared to jets exhausting from nozzles with 3 fluidic corrugations and 6 hard-walled corrugations. Unheated jet measurements of nozzles with fluidic corrugations and hardwalled corrugations demonstrated up to 5 dB reductions in the turbulent mixing noise at the peak frequency and over 3 dB OASPL noise reductions in the rear arc. An analysis of the skewness of the pressure derivative from heat-simulated jet measurements suggested hard-walled corrugations and fluidic corrugations decreased jet crackle. Heat-simulated jet experiments using the 6 fluidic corrugation nozzle showed a peak noise reduction of 2.9 dB OASPL in the rear arc. Prior heatsimulated jet experiments using nozzles with 3 fluidic corrugations demonstrated noise reductions in excess of 5 dB OASPL in the peak noise direction. Reasons for the decreased performance of the 6 fluidic corrugation nozzle are proposed and will be the subject of future investigations.