Yea, I 'spose we did, Widget - that was probably about two-years ago when I was accumulating them and putting them into all my SR racks.
And, it is. I trialed one in my studio/office for a few days and heard, I thought, an overall improvement particularly in coherence (or so I thought). So, I stuffed another one into the big system to same effect.
Last night I played that Patricia Barber CD "Cafe Blué". 'Wood is a Pleasant Thing to Think About' and 'Inch Worm' have never sounded like they did last night. It was pretty damned astonishing - every instrument (and voice) sounds more natural.