got all excited tonight after seeing that vid, set up my CG tonight at about 116mm back from the leading edge, this required the battery toward the back half of the wing and a nice lump of lead in the tail, Guess the ASP180 weighs guite alot.... now I always set my CG with a full tank of fuel and with low wing always upside down, what do you do? might move it foward to 110mm yet?