Replacement cable for Shunyata Hydra 6 power conditioner

I have a Hydra 6 for which I need a longer power cable. Since I have to shop for one, a question beyond simple replacement has come up. Are here better alternatives to the Hydra 6's cord? Someone suggested the classic King Cobra and a technician suggested that, should I stray form Shunyata, consider either a Gutwire SV-8 or Sablon Audio Corona Reserva Elite. Ugh. Does anyone have a recommendation. I want balance, timbre, decay and a clear upper end.