I use the signal double run for the bass of my Proac Studios. And I use Aperature silver for the upper end. I tried the Signal bi-wired and really didn't enjoy the top end as much as I did with the silver. I bought the shotgun version so I just doubled it up on the bass connection. Cables differ greatly, so you never know what you will like. Signal does offer your money back for 30 days I think. So if you don't like it, send it back. I am on my 2nd week about with the copper cable. I am still deciding whether I want to keep it or not.
I have used their interconnects before and did not like them very much. But, a lot of people do. And it is just finding what you are looking for. All of their cables do seem well made. I have tried many different types and brands of interconnects and speaker cables. Even the $2000 kind. Didn't like them either. I guess I am a tough person to please. Well, Joe at Discovery has made me a very happy man. I am buying a new phono cable from him right now. I really like all of his stuff. You can get great deals with no frills just like you can with signal.