Recently, Jose posted:

The FI system has a fuel return line to
return unused fuel pumped to the engine back to the wing tank(s).

Is this dumb, or is there a good reason not to return fuel to the tank
whence it came, in this case, the ferry tank?

I think it's short-sighted, as it didn't consider the entire fuel system.
From the description that NW_Pilot gave, the aux fuel system seems more
like a kludge than something that was designed.

Neil