OTThomasOK wrote: Many would describe the changes wrought by cleaning connectors as subtle, but as you can hear they can be very musically important.
I have some difficulties understanding how an improvement can be subtle...
If you change anything, you either detect it or not. Not “yes perhaps slightly”.
If it’s better, it’s better.
People tend to forget that many small improvements make a huge difference.
Hence the importance of a perfect installation where all small aspects are considered and validated using tune dem!
I get the impression that people describing an improvement as subtle really saying "yes it was an improvement but it was not (for me) worth the extra money/effort"