i just flew mine this morning, I set my CG @ 15-16CM. it is nose heavy. I am goin to take some weight out. right now my CG was set about 50% of the chord and it was nose havy, Im thinking I am gonna try about 60-65% chord and lose some nose weight, right now I had to put about 2 pounds up front. It flies great but was way to noseheavy upright. But I sheared the right stab off in flight. got it down. now I need to fix it. but my CG was @ 5 3/4" measured from tip of top wing back