WDH for 2500 Truck necessary?

I have a bit heavier TT with about 800# tongue weight on my 2500 Duramax. I don't "need" the WDH but still use it. I notice it helps with "porpising" when going over uneven spots.... it also prevents campers towing 12K trailers with 1/2 ton trucks from trying to "educate" me at the campground or gas station :)

I generally run mine on the 2nd chain link which is very little tension... just enough to give some support when things start bouncing on big humps and bumps.