DIY of power shielding inter connect cable

I been a DIYer of cables ( power, interconnect tonearm ) in 10 years ago, I used many different materials and different construction ways to see how they were in difference , finally I found with power shielding was the best of them ,since that there are no new idea come out to my mind so I did not make any cable up to now, recently a ultraanaloguerecordings subscriber asked me to make a power shielding interconnect for him also asked to use the best materials. now a day all I can get is 4N solid silver for conductor and WBT solid silver RCA plug and silver coasted telfon wire for shielding, when you have the best input source just up grade a part of your system will give you a unexpected surprise result of change, this pair of cable only take a week to finish also quality can match to the most hi end cables in the market
tony ma