RE: "I don't know the reason for the #12 elimination(while still allowing #14), but the end result is good" [regarding receptacle].
Maybe someone from Canada can help out with this.... I remember hearing something about this. Supposedely Canada had stopped allowing the use of a #12 wire {stab-back] in the 15A rated receptacle....since the US manufacturers sell to the Canada market, it was simpler to just manufacture the one size receptacle (i.e. only making the #14 stab-back) rather than manufacturing separate sizes.
Like I said, this is just something I heard, read somewhere a while back...don't know the accuracy of this but someone from Canada might have a more accurate take on this.
