I see it's been well over 2 years since this posting was active but I thought I'd offer my experience on focused power cords since then as it may save another time and $$$.
Of course my system has morphed numerous times since then but here are a few of my favorites in the focused cable camp.
Top of the Heap: 6Sons Audio Golden Eagle w/Acrolink plugs
2nd tier but still excellent: Wolff BOHICA, 6Sons Audio Windigo,
3rd tier-very good: Wolff Gain, Sunny Cables P600 w/Oyiade or IeGO plugs, Cerious Technology (also upgrade plugs)
Another option, if you have a cable of promise but it's not quite good enough: experiment with other plugs and don't hesitate to combine different plugs on the same cord.
I often use a gold plated plug on one end (the IeGO 8085) and something else on the other end--preferably an Oyaide 046 or a rhodium-plated solid silver IeGO 8095. I don't think the plugs much effect focus but they certainly improve detail and tone. Good luck!