I have seen the posts regarding the Advanced Air Ride hitch, which was sued in court for patent infringement. That was back in 2000 if I read it correctly. Is the product the company is selling now still a patent infringement or is he in the clear now? The design etc. looks like it would be heavy duty, and has shocks on it as well. I don't want to patronize someone who is selling something illegally, or doesn't stand behind his product. What are your views?