Pettit,
What size dubro tank are you going to be using. I think the one from Seagull is around 24oz. Is that the size dubro you are going to be using. I to want to change the tanks becasue I don't want gas running around on the inside of the plane if the stopper from seagull is no good.

I am going to be using a Brillelli 366GT and I want to use a least a 20oz tank.