Cab I think we are in the same boat (no pun intended). Any moisture that condenses in the tank is pumped out in the spring with the old gas with my method. I also replace the fuel filter each spring so the tank is dry and a new filter. Each spring when I pump out the gas, I look for debris in the gas from the filter and I look for water and I see none. You fill up the tank and add stabil which will reduce the amount of water in the tank but I don't trust the old gas chemically so having to burn it in a duluted concentration in my vehicles would take a while. I see more issues each spring with the gas and I think the gas manufactorers are changing the mix all the time and causing problems with long term storage.