Ok, I finished the CG test off the website given above. The CG should be almost a full inch aft of specs according to the calculations. I checked it and added 1/4 ounce to the nose over what was already added. Unfortunatly, while charging the battery at the field it caught fire. The battery must have had a shorted cell(Ni-Cad). No damage to the plane and a new battery is ordered. Will test fly next week.