I am a seller of "home-made" power cords here on Audiogon..
The truth is that pc's do make a difference... Just think of a garden hose for example.. If you have a small restricted hose, you wont receive the water pressure you require.. On the other hand, if you have a nice free flowing water hose with a filter system and high quality components, you will have excellent water delivery and pressure, purified water, and piece of mind that you are getting every bit of performance that you are looking for..
Sorry for the long winded analogy. The cords I have decided to sell have been used in my personal systems and after numerous tests, my product for sale is the one that performs the best in 99 % of situations. They are safe and each one is tested... The best part of the cords I make is that I dont transfer the large cost of the "big" makers to the customers. I feel that audiophile types and fellow music lovers deserve a nice product that they dont have to pay a huge or overinflated price for. My philosophy is that if you try one of my cables on you system and it doesnt meet you needs or sonic demands, I will refund your money.. not a problem. Anyway, Happy listening!!