Fuses, which by nature (AC current device) cannot be "out of phase," are by nature never out of phase. If a fuse has the potential to utterly mess up the sound of your rig by being installed backwards, there is an alternative universe in play. Also, I hope nobody minds (well, not really) if I pose the questions once again, exactly what does a "special" fuse do? How does it work and why? How do the designers come up with the designs? I personally assume a tiny shoeshine worker is in the fuse capsule, polishing the electrons and sending them along in a specific direction. A nano-worker if you will. Is that about right?Â