I've been using 2 pair of Kimber 8TC between my McCormack DNA 1/B and the SL3s. Given the separate outputs on the McCormack, this allows a more "natural" direct biwiring. The Kimber was initially chosen for my previous speakers and sounded so smooth on the SL3s I never did another round of comparissons. When I got the DNA 1, I just went and got a second run of Kimber. There may be better, but this works plenty fine for me!
