Gary,
When the experts answer it'll help them if you include your serial number. (This is a general rule that applies to all hardware changes in Coupes.) Changes like wing tank size were done at certain serial number marks. Even with the 9-gallon wing tanks, my wing tank gauge still had at least 3-4 gallons left after the gauge claimed empty. The any saturation and reduction in buoyancy of the wing tank gauge's cork will make this worse. Ed
