I'm sure the offer to listen to one of your interconnects is sincere zanash however I'll politely decline. I really don't think it's worth the effort of leaning over the back of my hi-fi to swap the cables ââ'¬â€œ although this is not meant to read as dismissive of the effort you have put into your interconnect.
I've tried a number of different interconnects over the years of various design and topology and on occasion thought I could hear very subtle differences with a few; I can't be sure however.
The only occasion when I have heard a clear change is when I constructed an interconnect with a series cap to form a high pass filter with the input impedance of my amplifier; a passive line level crossover by another description.