Geistware, are you saying you fill the tank and plug the vents when your done flying? If so why would you want to do that? I have always been taught to drain my tank and plug the vent.

Captianjohn, Put some gas in a small soda bottle, cap it then shake it like the plane will taxing out on grass, then remove the top {wear eye protection}, it may change your mind. I know that people do this and have no problems, just like some mount the throttle servo on the fire wall without an opt link and have no problems, and I'm not saying there wrong. I just like to avoid things that may be a problem.