Prairie Mike good point and good suggestion too. For a couple decades now I’ve been using a small fuel tank when fueling to catch over flow out of the vent line, figured I capture more than half a tank of fuel for every gallon, instead of letting to go on the ground. Would be easy enough to just switch to a larger tank and incorporate your idea.

Maybe I’m over analyzing the situation and reacting to essentially a very minor detail, but heck enough minor details can add up.