That sounds like a good explanation! But I am not sure if it is 100% correct - here is why : Just one question, why does my initial percentage read higher than 84% ?
Last night I was practicing again, and took off right behind the tanker. By the time I got lined up behind, and turned on the gauge, my fuel percentage projected on the HUD by the gauge read 91%. I started refueling, got the transfer message and it went down to 81%
I carried on practicing and using fuel, had several other attempts, with my fuel lower, but each time, I ended up with less than when I started the attempt. It usually bumps you down approx 10%
I will retry tonight with a lower initial fuel load. My experimentation is hampered somewhat by my ability at refueling, the longest I have been able to stay connected is about 10 or 12 seconds !
Will also try with a different loadout, IE no external tanks.
Cheers, Mark
Thanks for the help!