Anyone still use the Harmonix Studio Master Power Cord (not the 350)?

Anyone still using the Studio Master power cord, the one with the Furutech connector on one end and Wattgate on the other? Compared it to anything else? I hadn't heard of it, but got a good offer on a used one and wish to get a sense of its tonality on the cool-neutral-warm continuum, and anything else people have to say. I'm using a full set of PS Audio AC-12's right now and am looking for one cord, probably to use on Supratek preamp, that will take things up a notch without giving up modest warmth. I've been watching for older Kimber PK-10's, but they don't come up often, and the newer ones used (updated Wattgates) are typically more than I want to spend. Thanks,