This product seems extremely dangerous to me. I have towed travel trailers for over 30 years and have learned that keeping the ball as close to the tow vehicle is very important for stability. The physics of all this is: the further you put the load behind the rear axle, the more unstable the tow vehicle becomes. 41 or 48" seems awful far to me. The trailer has all that leverage on the tow vehicle. Moving the center of gravity back too far in the tow vehicle is how you lose control and roll them over.