Best interconnect for Sony SCD-1 w/ss

I'm using Cardas Hexlink Golden 5C with my SCD-777ES to Sim I-5 amp and the sound is smooth and rich.

Nordost Blue Heaven sounds pretty good also.

Getting good results with Goertz Silver Sapphire.

I'm using Nordost Quattro Fil with terrific results, but my 777ES has been modified, as you know. I do recall some posts on other threads a while back which took the view that you don't want too revealing a cable (I'd classify Quattro Fil in that category) because it could emphasize the weaknesses of the Sony analog stage. While those posters may not have been using a fully broken in unit, I would probably consider an audition of cables of that type before springing for them.

Cardas Golden Reference is a very nice matchup with the SCD-1--very smooth. A trusted friend says Purist (e.g., Proteus) works particularly well. On all of these, balanced cables are supposed to be far preferable with the Sony, but that's all I've ever used, so I can't speak from experience.