Reply by Fred Hargis

If the DC is large enough to support a 6” run, I would put that in. Then I wouldn’t be constrained by the puny DC ports on a lot of tools; upsize them to whatever you can work in to the space. But if the DC isn’t large enough to support the 6” main run stick with the 4”

-- I long for the days when Coke was a cola, and a joint was a bad place to be (Merle Haggard)