Saw that post before.
First you cryo the tube, then you heat it up again when using it. LOL! That's all I need to know. Kevin is an excellent sales person, for sure.
Re scientific testing, the null hypothesis is no difference: scientific methodology 101. For listening test, please point me to a published double blind study on the effect of cryo on sound. Personal anecdotes are just that, personal anecdotes, without any sci. credibility. Sorry!