There is a misunderstanding. You dont need to search for mura, if your panels have it you WILL see it after you first use your headset.
I own 6 headsets, except for the 8KX none of them has mura, and i saw it immidately when i first tried my 8KX.
So stop talking about “dont look for it” or similar, if you havent seen it yet means your panels dont have it. Consider yourself lucky and enjoy your headset ! 