as you are experienced in the field i am sure you are aware that electrical transmission of digital data waveforms are fundamentally different than analog ones, where silver cables often brighten the sound, copper ones add warmth etc etc
here is a potentially useful reference -- https://audiobacon.net/2018/08/11/the-audiophiles-short-list-the-best-digital-coaxial-cables/12/
i personally have had very good experiences with cullen’s digital cables as well as those made with belden cables by blue jeans... very cost effective... i do not hear a difference from much more expensive ones i have tried that were ’highly recommended’ in many forums in my digital front end -- in which i have chosen carefully to minimize jitter and other digital artifacts
good luck
here is a potentially useful reference -- https://audiobacon.net/2018/08/11/the-audiophiles-short-list-the-best-digital-coaxial-cables/12/
i personally have had very good experiences with cullen’s digital cables as well as those made with belden cables by blue jeans... very cost effective... i do not hear a difference from much more expensive ones i have tried that were ’highly recommended’ in many forums in my digital front end -- in which i have chosen carefully to minimize jitter and other digital artifacts
good luck