I agree with Chayro.Already having extreme wiring in your speakers,there is alot to be gained by having extreme speaker cable and interconnects.Should bring the sound more forward and further decrease any veil that you may have and not realise is there.
Switching to the devores (harder to drive)would cause a dead end ampwise and tubes, IMO would give you the mids(perhaps a 300b) you seem to be looking for.
Switching to the devores (harder to drive)would cause a dead end ampwise and tubes, IMO would give you the mids(perhaps a 300b) you seem to be looking for.