So with the 310 MPS, who is responsible for the receiver fuel state and position of the AAR Bkts and associated APs. If it is the tanker and the reliance is on the MPS output for the info, then surely this is flight safety critical for the receiver crew? I know the receiver captain is technically always responsible for his own fuel state and safety, but if you apply that principal on the position of AAR Bkts and APs then you may as well go down the US way of trails and get rid of the MPS altogether.