With the effects of ethanol wicking up water would apply to the gas while its sitting in the tank underground at our favorite gas station. So how much water is in the gas as we're pumping it into our bikes and cars??? At $3+ per gallon, it kinda pisses me off thinking I'm not getting what I'm paying for.
So if this is true, keeping your tank full doesn't accomplish what we may think.
Read back through the thread. Somewhere in there it's stated that moisture in the underground tanks isn't that big an issue due to the size of their vent lines in relation to the size of the tank.