Unfortunately here are not "absolutes" . It depends on which system you are using them. IMHO it depends strongly on which speakers are you using and where are you using the cords.
My home systems based on tubes . 1) Audion SN SET + jadis J1 + Krell DAC + JBL L300. 2) Audion Appollo's monos based on vv52b + Canary audio cd100 + JBL 4350´s . On both systems Lessloss were unbeatable suit on the Krell DAC and on the Canary audio cd player. No veiled at all , great and lust bass , delicate highs and seductive voices ... a dream come true.
Them defeated big time my virtual dynamics Master series LE 2.0 , Acrolink with oyaide 004 M and furutech fi-50 IEC , Furutech evo upgraded with fi-50´s and several more provided by a friend such : Iego , neotech , harmonix , harmonic , etc..
But if you use on the amplification path , like on any of my Audion's , the differences are smaller and no one of the previous are an absolute winner or looser.
Recently I participated on a blind test with some friends , the speakers used are BW 805 nautilus and the Lessloss were fatiguing , extremley bright and bassless. Same happened to a BW 803 owner. But my personal experience was replicated on a Dynaudio + Nuforce friends system.
My conclusion is that the Lessloss are very speaker dependant. If them cant manage the improved data flow from that cord on all the frequencies , you will feel something is out of balance. The BW's 805 and 803' has no great bass , so if all the data is augmented by the LessLoss , the highs will veil the bass and it would sound harsh and fatiguing. The same for leaking highs speakers , so the data flow will veil it by the improved bass region.
On my very dynamic horn based speakers the LL has no contest till now on CD section.