All you really need are good hospital grade outlets. Be choosy because some are better than others with regard to terminal grip and material and construction.
I used 10ga solid copper Romex. If your run is short, 12ga will work. 10 ga is very difficult to work with especially at the outlet.
On average, my dedicated outlets consistently put out 2-4 volts more than the other house house outlets.
I won't lie. All this work and money made a relatively small difference. But, like many of us, I have a lot 'small differences' going on.