I have run the tanks dry on both sides about three times each so I
know my gauges are accurate and can predict to within about 0.2 to 0.3
gallon useage when the engine will stumble.

Not once did the engine quit.

To be honest about the first time I was circling over an unused runway
and for some unexplained reason the circles became tighter (smaller
radius) as the tank got closer to zero. Obviously I had planty of
altitude.

Ron Lee