I've tried alot of cords, but not with ML's. My experience is that the less expensive cords are not a good value, making little or no difference (or worse), while the better cords can provide much more improvement. The best cord I've heard is the JPS Power AC, which is $500 new, but about half that used. You should also consider a dedicated AC circuit for your speakers, if you haven't already. That is usually pretty cheap ($200-300) and can improve sound more than power cords in that price range.
