Note that both the CONOPS examples from the 2004 brief show refueling at 10,000 feet, and cases where that makes sense (recovery or CAS) because that's where the fighter is operating anyway.
Wonder (1) what is the max altitude at which I can refuel an FJ from the V-22 - without the former falling out of the sky, or the latter either falling to bits or using so much gas to get there/stay there that it has none left?
(2) How much gas do I then use climbing from that max altitude back to cruise-efficient altitude for the F/A-18?
I suspect that this stunt may be part of the desperate effort to foist the V-22 on the CV Navy as a replacement for the C-2.