Never heard a custom made power cable myself. I could always get qusp to make me one, but I would rather wait until I hear one first. Heck, connectors here are like $90 for one! Best option would be to get a power cable made for me, buy Audio-GD's power filter and buy US power cables from ebay and audiogon. Nonetheless, I hope you enjoy it
Not particularly a believer in cables atm, but we will see in a month or so when I get custom made Valkyrja RCA interconnects made
I love cables. I have to get into DIY someday. I don't care if they sound the same. Some of the custom made cables out there look AMAZING and I would pay quite a bit of money just for that 
BTW the world's best cable is probably owned by Patick82. It cost over $50,000. IIRC, his rabbits chewed through it though.