i haven’t tried the FI-46. Most of my connector trials were with Audio Note ISIS mains cable but I also used Ocellia Silver Reference cable.
Just to follow up on my earlier post, I have since then tried using ETI Legato Gold for both IEC and AC plug. That had too much of a gold coloration (too warm and slightly soft and rolled off in the treble). I also tried the ETI Legato Rhodium IEC but it is too lean in the bass for my tastes as well as slightly too bright. For me the combination of Legato Gold IEC and FI-11M Copper AC is just right. I now use that combination on ISIS cable for all of my gear.