Lesson learned - If you have a crazy drop hitch and the trailer starts wagging, the drop hitch dosent help any. Drop hitches add a lot of side to side movement of the ball.
A couple years ago when I moved across the county, my only truck was my trail rig. Toyota on 35s with the reciever at frame height (2x3 tube welded between the frame rails with reciever in it), 12" drop hitch. Even with a level load and good distribution, I had sway issues.