I find jdub39's issues interesting. I am having a similar issue with a twist.
I ordered a single pair of Fusion II interconnects and things were going well enough I ordered a second 1 meter pair. Due to a back up at the factory it took 5 weeks to get the second pair.
When I put them in, they sounded far worse than when i initially put in the first pair. I ran the set up for about 20-25 hours and things got worse and worse. I took the 1 meter pair out and put them in my headphone set up and ran them for about another 30 40 hours. In that system they sounded very good with good top to bottom balance and good sound stage,
I put the pair back into the main system. While better than initially, they still have a slightly depressed midrange with blunted leading edges of the notes. The vocal "size" increased to about twice the diameter of the set up with just one pair of Zavfino cables in the mix. The vocal is slightly more diffuse as well as being larger
At this point I'm a bit bemused.
It could be more hours are needed but they sounded so good in the headphone set up
It is just a mismatch between my CD player and preamp
or a very unlikely possibility - these cables don't really like to be less than 1.5 meters. Again doesn't appear probable due to how good they sound in the headphone set up
I'll continue to rack up more hours on the set up with both sets of interconnects in the system and see how it plays out.
It's too bad as what I was shooting for was to get a full loom approach. I was going to order speaker cables but now I've put that idea on hold