i use a 12oz tank and balance it dry.
it didn't effect it that much.
i also set up accroding to the aileron gauge
i moved the cg back as i got more comfortable with the plane.
the plane still behaved beautiful..

however.. i did notice, i never flew a complete tank with a 12oz
and it seemed like it flew forever
dead sticks was down.

even on dead stick with clipped wings. it was a big gentle glider.lol