Hey guys I need some help. I am a GP Matt Chapman Eagle 580 .46 ARF. I am trying to balance the model and I am needing aout 14 ounces in the nose of this airplane to get it to balance out at the 3.75 inchs aft of the root of the wing. I was hoping that someone else has built one of these airplanes and could give me some advice. I called GP to get some help from them and they where not any help. The gentleman seemed to hardly know anything about building aircraft. Thanks