I agree that the difference in stability will be barely noticeable, if at all. My TT is 8500# loaded and the 6.4 Hemi is a dream. As some posters mention the rear coils make all the difference in terms of handling.
I have left my WDH off a few times when taking short trips and honestly can't tell the difference. On a long trip maybe I'd be able to tell. I've never run w/o say control with this truck but have with others. I mainly like the sway control just so I don't have to keep watching for a big rig blowing by me and giving my trailer's back a big push.
