Hi. I bought some of these for my bi-wireable speakers yesterday from Cobalt. Before purchasing, I called and talked to Terry for quite a long time. I was basically wondering if they were "snake oil" or not. I have dealt with Cobalt before, and have been very impressed with their honesty. Plus, the build quality of their cables. Anyway, I decided to order three pairs (mains plus center). He said since i'm not bi-amping or bi-wiring, that I could try them out. And, return them if I wasn't happy. Opinions? http://www.cobaltcable.com/product/bi-wire_jumpers.htm