Not to trivialize noise measurements, but this sort of does show how there is not a 1:1 of noise and Sound quality. Now that being said there are few reports of some amps this causing issues with, but that is a known factor and reported in the Stereophile mag.
I for one love the SQ in my setup, could care less on the measurements. I have a scheduled appt. to put in my APS transformers from JK next week. Going to let burn in while away for a few days I am out of the house. Hope it does not bother the rest at home. But I should get 250+ hours burn in with them.