Signal, Guerilla, etc. better than Radio Shack IC?

Has anyone compared the lower priced interconnects by Signal, Guerilla, and others to Radio Shack Gold interconnects? If so, are they significantly better, or are they just better than the junk interconnects that frequently come boxed with components? Thanks.
There is a tangible difference and a possible perceptual difference. As far as tangible, if you hold Signal Cable and RS in your hands, you can see/feel the better parts and build with the Signal Cable. As far as sonically, this is where perception comes in. I believe Signal Cable is sonically superior, but that is my perception, yours may be different and only you will know from listening.