> You could always use the left over switch as a Ground Lift switch.
> Might as well put it to use.
> -James

Please don't do that! Due to electrical safety reasons this is not allowed
because the housing is no longer earthed in this case ! If one of the mains
leading cables becomes loose and touches the case there is serious danger to
life. This is why the case has to be always to be connected to earth. I know
that this a popular procedure but I'd strictly disadvise.

Best wishes
Dieter Doepfer