Sorry guys, but who here honestly thinks that people are swapping out fuses as often as ICs or SCs. And, based on what you say, do you regularly go about opening up your gear and cleaning your fuse holders as often as you do your cable connections?
I tried that years ago when first told it was just the contacts and guess what? Cleaning them revealed nothing. No dirt. No residue. Nothing like what one would find on RCA and speaker connections.
I take a good look at those fuse holders when swapping fuses and they look brand new and nothing like RCA jacks and speaker connectors after 6 months, let alone 6+ years. I have to give you guys credit for imagination.
This is all nothing but going in circles with the same old tired arguments. What you great minds of audio should do is stop wasting time haunting audio forum boards and figure out just how and why a fuse can contribute to the sound, because it does.
All the best,
Nonoise