johnson0134,
You are of course absolutely right. So right in fact that I would think anyone who actually bothers to do what you've done would have to agree. Most of the people who disagree turn out to not have spent much time doing the work to know what they are talking about. The remaining doubters pretty much all fall into the category of haven't yet figured out how to evaluate the one thing being evaluated so that instead of looking for the best component they are looking for the best band-aid. Only they haven't figured that out yet.
Well there is one more category, but it is thank God a category of one.
Anyway the connection observation is important enough I've mentioned it to people many times. Especially when comparing something like a fuse its important to first remove the original, clean everything, and reinstall BEFORE attempting to compare with anything else.
Another thing I thought you might mention, though not surprised you missed it as its fairly subtle. Simply handling a cable, wiggling it around connecting and disconnecting, is enough to affect the sound. Disconnect a cable, wiggle it real good, connect it back up again. Listen as it takes a few minutes for the sound to settle back in.
Its actually kind of funny people thinking cables are system dependent. Like the laws of the universe aren't really laws, they're a little different every where you go. Right. Good one.
Nice observation. You are on the right track. Want to hear something really good, try any wire with Synergistic Research on it.