RNR is required for Wifi-6E, and PSC is only supposed to be used for pure 6Ghz client AP discovery. IIRC, scanning isn't even supported by Apple devices, they must rely on RNR. Given that, in my testing, PSC's don't really matter. That said, if you are using 80Mhz channels, may as well use a PSC ones. One more tip with 6ghz, if you are using 40Mhz channels on 5Ghz, and 80Mhz channels on 6Ghz, all of our clients immediately goto 6Ghz without an issue since there's more bandwidth from the client perspective. When we synced the channel width, we didn't always see clients switch to 6Ghz.
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