Has anybody heard the FIM power cords?

I tried s handful of ower cables, but none extracted the sonic improvements of the FIMs. I have "formed" two into my system for mono blocks. Ten day to two week break-in period for much of it's realization. Can't say enough about improvement through power cord upgrades, especially the FIMs. I retained the Fatboy powering my preamp. It is also an excellent piece. For digital, the Electraglide PT has suited well. I have not sampled Shunyatas, but all feedback leads me to believe there is no need. The FIMs may be stiff, but with patience they shaped beautifully. Top-notch product.