Kjay:
Delving into this deeper (for one outlet).....
MC can be used in a non-metalic box. I cannot locate any info as to IF the clamps in an old work NMbox are OK (acceptable) to secure MC to the box. The discussions went either way, with no documentation for yes or no.
MC in NMbox is NOT a 'normal' method here; I have seen it once or twice, but the MC was stapled per NEC.
