Best Interconnects

I recently put a preamp into my system instead of feeding my Wadia 781i directly into my power amps. Which by the way was a significant improvement. I am now looking for the best interconnect between my Wadia and my SMC-VRE 1 preamp. I am considering Stealth Sakra, Cardas Clear, Kubala Sosna Elation, Tara Labs Zero Gold. Preamp to power amp is Tara Labs Zero Onyx. It is very difficult to evaluate all these cables especially over extended break in periods. Does anyone have experience with several of these cables or similar. Your advice and input would be highly appreciated.

Best Regards