DMI Quic 'n Easy Hitch? (agricultural cushion style hitch)

The DMI unit sounds very much like the M&W Double Cushion bumpers we used on the farm. They had springs on either side close to the truck frame rails. They worked great for hauling wagons, but were not the greatest for trailer hauling, due to the springs working independantly and somewhat contributing to sway. So if your DMI unit is like the M&W, it may not serve you very well.