To address a few questions...
The screens do not contain mercury as far as i know, and the battery won't leak. Neither will the screen break, just put it in the fridge after you remove it from the freezer, and then wrap it in a cloth and put it in the coldest corner of your house, because the key of this operation is that the device should warm up as slowly as possible.
I have a fine ear and there clearly IS a difference after the freezing process, which REMAINS even after the device has reached room temperature.
As about the double-blind test, there are a few samples of "before" and "after" available for download, and there is a perceptible improvement in the "after" ones. Just listen and conclude for yourself.
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For my dreams i hold my life...
I miss my Meizu M6SL... Currently rocking a Sony Ericsson w595 on Samsung in-ear phones. Does fine, but it's not a chipod...