speaker cables

hello all. i am lookin to upgrade my current spkr cable sitiation, i am employing kimber kable bi-focal x presently. i am running a b.a.t. ss amp with a b.a.t. tube pre. my speakers are KEF 205 reference. i like the kimbers, but, am looking for more. i auditioned jps labs superconducters, but was not satisfied enough to make a change. i've heard glowing reviews of purist audio, and synergistic research. help! any feedback would be greatly appreciated. i'm lookin to make a change soon, so, any immediate feedback would be great. thanks, GMAN