Real world experience:
My buddy and I had very similar trailers, big 41' Weekend Warriors.
Our loads were almost identical. Full water, 3000lb sand rails in the trailers etc.
I have always had a dually, he always had a SRW Chevy.
Was he always right there with me towing? Yes.
He left his rig at home one trip and went down with me.
He said the entire way, "I can't believe how much more solid your setup feels".
He couldn't tell when a semi went by us, he couldn't tell when the wind was blowing... etc.
Not sure how much more real life you need than that.