I too have noticed that getting the MC-0.5s to the outlet is the best way to go. I tried running a power cord to a Quad box but I noticed I lost some of the resolution. On Video you could really tell, the image was not quite as "jump out at you" as before on my 85"UHD Samsung.
Luckily, when I ran my 3 dedicated lines using 10 gauge wire, I installed a quad and a duplex on each line. Of course all outlets are the Furutech GTX-R with the Oyaide outlet covers. (overkill perhaps, but I will not have to change anything in the future).