I had used Audio Note speaker cable for 20 years which I paid 3K$ ( I am original owner)
It was hard to beat with excellent transparency, treble, tight bass and soundstage.
I happened to get used Teresonic Clarrison Speaker Cable at reasonable price about 3 weeks ago.
It was close to the performance of Audio Note with more relaxed sound.
But ultimately I found that Audio Note has better dynamics and more inner details.
I had Teresonic Clarrison Speaker Cable and Audio Note speaker cable connected to my speaker at the same time for 12 hours.
It got more relaxed and soundstage got slightly wider and deeper.
The most notable thing is it sound more holographic.
I thinks Doug Method has more effect on IC cables.
But if you have two good speaker cables, you may try.
Unless you try yourself, you will never find out.
Thomas