I had a similar question for AQ, and was advised that the William Tell Silver biwire would be a better choice than Thunderbird biwire (I did mention I have 96dB Tannoys). The cost for these 2 configurations is very close. I was also told this would handily beat my double run of AQ Kilimanjaro, which is their 12 AWG (9 AWG for a double run), 2nd from top Everest, all PSS silver cable from 2 series ago. The Kilimanjaros still sound fantastic to me (lots of detail AND body), so I’m taking my time with any upgrade.
And @ctsooner is making me want to snag a used Dragon for my Niagara 7000 or the solid-state Phison amp, dammit.