It Cracks me up when the manufacturer says it is programmed. Am I missing something, move the pin and it changes the arc. I have a Rover and after several attempts I have it doing small arcs. I finally realized it was fighting my filter, I think the current on top pulls the cord, since I was going faster in one direction than the other. No complaints so far 0ther than the cord tangles and I have had it riding along the wall, not sure how it did that but it was riding 2 wheels on ground and 2 on wall perpendicular to bottom. Maybe 1 beef, for some reason it rides on 3 wheels, like it is a little buoyant?
Now my question, I have it so I can cover the 30' length, but when it does it's pie turns it hits the wall, is this damaging the liner? I would think if it was they would rubberize the wheels.