Ok, my second day driving with the 7709 in the middle setting:
The change wasn’t drastic but it was significant. It's not what it does, it's what it doesn't do.
In 2 words: predictable control.
I had installed new Bilstein rear shocks P/N 24-228848 the week before. Both were easy DIY installs and restored a better than new ride quality with no harshness what so ever.
Having said that, the Hellwig bar is a smidgen(1/16") smaller than the Laramie Longhorn bar that I took off. (Solid vs hollow?)
I will be trying the tightest/closest hole setting next week, just because this improvement did not compromise the straight line ride quality at all.
Previously I had leveled the truck by lowering the rear through the use of Revel links. And whilst I did like the lower center of gravity when I swung the back end around, I did not like "lower spring rate" feeling of having less nitrogen pressure in the rear bags. (and being so close to the bottom-out bump stops). So I went back to the factory links.
In conclusion I feel that these two upgrades (Bilstein & Hellwig) are a "must do" on any Ram, And if you have raised your truck or you do any towing at all I would recommend going with the 7793