Al, that was probably
standing still in front of your hangar. In the air there’s going to
be some sloshing away from your tank pickups –especially when climbing or
descending – which are really lousy times to lose fuel pressure!
Don’t worry; I’ll
never fly with just 2 gallons in each tank; at least not deliberately. The
point of course was that all the fuel will drain from the mains to the sump at
an ample rate.
Al