Any actual experience with a Harbor Freight WDH?

So if you buy this hitch, there's something you should know. It has mount holes for sway control bars such as these:
http://www.harborfreight.com/trailer-sway-control-kit-96462.html

The ad claims it can "Prevent dangerous trailer sway" which does occur when you distribute weight properly, but you can get even more control with a dedicated sway control setup.

Since our rig will be to 6,200lbs wet and the HF bars are rated to 6,000lbs we'll use two bars.