Cables are notoriously difficult to review. Capturing the subtle, even minute changes good cables make can be challenging to describe on the page. The ear is a much better arbiter than the written word. Thus, the description must be super accurate if the writer has a whisker of a chance convincing cable naysayers. Also, long term thinking is required to really hear the positive effects cables have on your system.
Connecting two or more cables from a ‘loom’ from one manufacturer makes things even more difficult, even though multiple products of the same design in the system should make changes seem more obvious. Literally, too much information in one sitting can lead to confusion (ever wonder why on black box recordings pilots ignore obvious multiple klaxon warnings when in deeply stressful situations?). As Emperor Joseph II says to Mozart, ‘Too many notes’.