A method of transferring weight between a tractor and an agricultural toolbar is provided. The method comprises determining a net toolbar ground force acting on a plurality of toolbar wheels supporting a toolbar. The method further comprises determining an estimated tractor weight carried by the rear tractor wheels of a tractor based on a user input. The method also comprises determining an estimated tractor weight transfer amount transferred between said tractor and said toolbar based on a pressure in an actuator configured to transfer weight between said tractor and said toolbar. A further step is provided of calculating a net tractor ground force by adding said tractor weight transfer amount to said estimated tractor weight. The method further comprises comparing said net tractor ground force to said net toolbar ground force. A further step of modifying a pressure in said actuator so that said net toolbar ground force more closely approximates said net tractor ground force is provided.
