I tried multiple power cords on the BPT designs before and a couple come to mind which offered good results. ESP, Audience, and the WireWorld Silver Electra all offered excellent results. The Audience PowerChord offered the best results out of the three. Swapping out the stock outlets and replacing them with the Hubbell HBL8300R also offers outstanding results, especially if you decide to use the Audience cable.
Alan
Alan