Flashgo,
With those big Teflons and long wires, it might be the inductance in series with the cap that makes the sonic difference!
There's potential for picking up RFI with the extra loop inductance, but if it sounds better, those long leads can't be doing too much harm.
Well done Martin! I've just ordered a couple of the HD Placids to go with my Buffalo dual-mono setup. Just need those blasted Tridents!
I was wondering whether the old Placids can be used elsewhere, say in a 9V power supply I'm thinking of building to power my USB - SP/dif convertor?