I had similar, just no 3rd wheel. May work ok on hard ground if you have the 2 person method, and one is always manning the dolly. Mine was parked on gravel. When I tried to use mine with just me, and had to leave it down and pull the boat back by myself (uphill both ways) the handle tended to flip up and dump the tongue. Was still connected to the ball but hard to pull it up once it does that. I can see that happening with this one when unmanned. Once on level hard ground it worked well while manning the dolly, small 16' fiberglas outboard bowrider.