I own a Silver Tellus Entreq and I have made a couple DIY grounding boxes.
My initial reaction to your question is, it shouldn’t matter what type of grounding cable is used as long as it conducts. So, I made several of my own DIY grounding cable versions. Some from copper some from silver some a mixture, and I tried different gauges etc.
Then I found a used Atlantis grounding cable that was at that time the Entreq top of the line grounding cable. To my surprise, it did make a difference! Sorta of like upgrading the grounding box. Since then I bought a few more.
I can’t explain why, except, that maybe they are the right gauge, wire and length to properly work with their equipment.
The Tripoint cables are probably even more expensive, but you have started down the road...