From a sway prevention point of view, the ProPride does not need much setup. For the weight Distribution, first off, I'd ask Sean at ProPride what he recommends for weight distribution bars for your combination.
You may not need a lot of weight distribution, and the good news is that with whatever he recommends, you can finely adjust the bars to give a very good ride for the trailer and your Duramax.
I use a Toyota Tacoma crew cab to pull my 22 footer, and can very precisely adjust the WD to give a smooth ride and handle cross winds and rough pavement very well. Have never popped a rivet...
Rich, KE4GNK/AE, Overkill Engineering Dept.
'The Silver HamShack' ('07 International 22FB CCD 75th Anniversary)
Multiple Yaesu Ham Radios inside and many antennae sprouting from roof, ProPride hitch, Prodigy P2 controller.
2012 shortbed CrewMax 4x4 Toyota Tacoma TV with more antennae on it.