It would be great if you could add the model codes to the brands. As far as I know Gepco was acquired by Belden - do your cables precede the merging?
It’s easy to buy a bunch of cheap microphone cables. The important thing is being able to hear their differences, understand what they are doing, and use them in your system to optimize the sound. I suspect David recommended particular ones to Tang as he did to me. Our three systems are different. There’s no guarantee that you’re going to like these cables. If you’re interested in knowing what David recommends, you might want to contact him and ask specific questions. Just a suggestion.