[Wavery]

It is best to unhook the WDH spring bars before backing anyway.

The concept of the WDH is to increase braking and steering control when hard braking @ highway speeds. It has NO value while backing or maneuvering while parking..

The problem that you may encounter is that the WDH receiver hangs down quite a bit. The guy that I bought my trailer from had to back up a steep driveway. Once he got his WDH set-up, he cut the bottom off of the receiver and eliminated about 2" of unused, worthless steel.

If you still drag, you could always remove the WDH hitch receiver and install a standard receiver before backing in the driveway. It would be a PITA but it may solve a problem.