I think the whole idea is to test the cables in your system.
It's difficult to judge on a system your not used to.
Any decent audio dealer should have demo cables you can take home and demo.
If it doesn't make a difference, your not out any money.
Timing and quicker tighter bass was definitely one thing I noticed when I put my cables in.
It made a more noticeable difference for me between the preamp and my amplifier.
Don't get me started on tube swapping...
I didn't intend to start a war and apologize if the beer took hold this weekend.
Enjoy the music no matter what you use.....
Oh ya and believe it or not, my nic from the Age of Empire gaming days was Bigus_Dikus.....