I wanted a really accurate one for some back country flying so went to the trouble to drain the tanks and then refill the unusable fuel. I then cut off the bottom of the stick so that it read zero at that level. I don't know if anyone wants to go to that amount of trouble. Deducting one gallon like Robert said sounds a lot easier.
Jay
Last edited by Jay Rich; 12/16/20 11:29 PM.