After waiting quite a while I rolled the dice and got two. Then, I got another. They were all B-stock and were 35% off which made them quite the bargain.
After having them for some time now, I've put off getting something like a Audioquest Niagara 1200 conditioner, as the sound just gets better and better.
I don't know how long they take to break in, but the improvements were heard pretty much straight away. Taking them out has an immediate effect. Doubling up on one outlet sounds strange at first (a little too much leading edge and diminished mids and base) but it all gels nicely in a few days.
Now that summer is over and I don't run the wall AC, I've noticed some more improvements in the areas of detail, soundstage depth (see-through) and better, tighter base.
There was a holiday sale of 40% off their products so a quick email or phone call may get you the same if you're interested.
All the best,
Nonoise