Just a shot in the dark, but you never know!!!
Would a kite system work better? That way the bucket would appear underneath the helicopter. You could make the refuelling point underneath the main rotor thereby getting round the problem of extended refuelling probes.
Of course you would need an acurate con by the aircrewman, or you could have some sort of computer lead system / video screen.
Hmmmm..... I'm of to the patents or lockheed / boeing
.....patents first, then lockheed / boeing
