Speaker Jumpers

OP, another thing to consider is to borrow a bi-wire set of cables from your local Cardas dealer, if possible, and try that before deciding whether to use a high-quality jumper cable or go to bi-wiring.

Keep your Cards SCs and get either of these:
https://silversonic.com/products/speaker-cables/bi-wire-jumper/?_vsrefdom=adwords&gclid=Cj0KCQjwjvXeBRDDARIsAC38TP6UT4zwAhKLBCQp5wSAOPipOu2EG9fwqoixK3XaYBtaXho_v1CzOOsaAt4DEALw_wcB
or
http://www.mazeaudio.com/speaker-jumper-cables.html

I use the DH Labs jumper cables and they work just fine.

All the best,
Nonoise

I appreciate all the good feedback and advice from all of you. I would like to bi-wire but my speaker cable model are no longer being made. It's too bad because my amp is made for bi-wiring. The Maze Reference jumpers look really good and are not expensive. I am going to try them because I can't get jumpers of my model cables either. I'll let you know how it works out when I get them. Also, I can take my time and look for a used set of my speaker cables for bi-wiring. I just started to break in a new pair of speakers and that's why I want everything to be right.

I don't know if the Cardas solid jumpers are better than the wire ones. I have never tried either one.

Cardas may be able to reterminate your speaker cables so they are bi-wired. Call them.