I have a 09 3.5L SEL and my wife and I want to get a boat. I see that I can get a class III hitch that installs on the Edge but my concern is the tow capacity. Ford states 3500lbs/600lb TW. Does anyone tow anything heavy with their edge and what is your experience. I am looking to tow between 3000-4000lbs but my biggest concern isn't towing itself but getting this boat up out of the water off a boat ramp. I don't want to get stuck. What are people towing out there with there edges?