I’m not doing Discord Brian. Umberto is a regular visitor to this forum but for reasons unknown won’t answer perfectly reasonable questions. I’m not alone in being ignored. @virtuali, where are you?
I was taking an extremely short vacation, and you must understand my time with P3D is very limited, so I can only give to it a percentage of the time that reflects the actual user base. Suppose you were an MSFS user: would you find fair that I would spend too much time on a platform now used by about 1% of the user base ?
In any case, the FSL Concorde is surely flagged as having a custom Fuel system in the internal GSX database. This means, unless the airplane-provided profile (unlikely) or your own customized airplane profile overrode that setting, GSX is NOT refueling the airplane!
Meaning, the time the airplane takes to refuel itself (that what happens when the airplane is flagged as having a custom fuel system), is completely unrelated to GSX, which will only stay there with the truck for as long the airplane keep increasing the fuel quantity.