Wow, this sounds like one of those stories where everybody just says
"Well this is the way it's always been done..., so join the misery."
Why doesn't Dubro or someone come out with a fuel tank with a nipple on the back of the bottle for refueling/defueling access? Then a fuel dot could be mounted to the side of the plane for easy access. No pulling off fuel lines, etc.
Look how roomy the back of the fuel tank is......

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