Use WD hitch or not?

What you call weight carrying is actual weight distributing hitch. Weight carrying is tongue on ball only.

You might want to re-read; we are talking about both types here. I did not refer to a weight distributing hitch as a weight carrying hitch.

No half ton receiver has over 600 pounds of weight carrying capacity. Look for a sticker like this one on the receiver itself.

My bumper has a hole for a ball. On the bumper it says 5000 lb trailer weight 500 lb tongue weight maximum, bumper only. The receiver, on the other hand, has no label that I can find but the owner's manual calls it class IV and rates it at 10,450 lb (and presumably 1045 lb tongue weight). I don't think I have to worry about the receiver. My particular truck is rated lower due to the 3.21 rear end, but the rest of the stuff is the same.

For GMs the front wheel lip has to be at original height.

That's where my WD hitch is currently adjusted. On the other hand the WC hitch lifted the front a mere quarter of an inch, so the front axle load went from 2491 lb (no trailer) to 2266 lb (trailer with WC hitch). Somehow I think I still have steering...

I went to the roadside truck scale, a scale I had never seen operating so it was nice to just drive up and check your load. It was operating today though, with a line of 18 wheelers so I just drove on by. However I noticed that, while driving with the WD hitch on these back roads made it feel like the trailer was pushing the truck around, with the WC hitch it felt even MORE like that, so I guess that answers my question - I will use the WD hitch. I believe with the e2 WD hitch and its integrated sway control, things are just more stiff back there which apparently reduces the "pushed around" effect.

I think this truck feels this way because Dodge has been 1) making an effort to reduce truck weight to improve MPG, and 2) this truck for some reason seems as tall as a 4WD one, and 3) the rear suspension is more car-like with coil springs. Add all this together and it is squirrely for towing. I had a trailer of the same weight that I was pulling with a Sprinter van, 158" wheelbase, and you could hardly tell the trailer was back there, and that was with a WC hitch and no sway control. Pulled very nicely. Sadly, that van is gone.