Unlock those locking DIN plugs - it's official !

I see in this Autumn's Naim News that Technical Director Roy George finds a "small but noticeable improvement" if the locking rings on Naim DIN plugs are left undone.

Could this also apply to the much larger and heavier collars that lock the Burndy cables in place? It seems to me that you need to lock the Burndy when you first connect it, because the action draws the plug into the socket. But once connected the collar can be loosened without the plug being drawn out of the socket.

I'm considering trying it, but does anyone think this is inadvisable?