Yes there is. 2 advantages really.
1 is that you don't have to lift the weights as high off the ground to hang them.
The other is thatwhen you have the weights low to the ground, they can be 11 feet forward, but actually be a little more than 11 feet from the axle due to the angle. As the front of the tractor lifts and the weights move in line with the axle, they move forward, helping controll front end lift. Depending on how high your rear axle is, and how close to the ground your weights are, the front weights can move forward 2-3 inches.