looking for thoughts and words of wisdom on running a tank dry on a long cross country. I’ve never done this before. But, how else to maximize fuel range and leave the max amount in the last tank for approach, landing, missed approach, etc? Is the method to run her til the engine quits and immediately switch tanks? Any thing to be worried about from a sediment/ contamination standpoint or getting air in the line such that the engine won’t re-light? How much uncomfortable silence is expected before she fires again? Plane is a 63 debonair.