Cryo treatment?

Cryo is a bit of a "pot luck" thing because there isn't any regulation or standard governing it.

However, I've had excellent results with Voodoo cables cryo wall sockets and 20/15 amp connectors, so I imagine their cryo cables should be equally as good

I demoed Voodoo cables, and I found them to be very smooth especially for silver cables.  Not sure how much the cryo treatment contributed but it sure didn’t hurt, and I was impressed with them.  Just my experience FWIW. 

To do a direct comparison, you’ll need 2 identical cables but with only one will have Cryo treatment- doubtful if manufacturers will offer both PLUS someone willing to buy both to test.