I had 6 ounces of lead up front with an 1800mah battery pack. I also put in a dual exhaust that exited in the stock location. That weighed 4 to 5 ounces. It will be a fun plane to fly and the looks are great. I don't get too excited about faulty ARFs there aren't too many that don't need some sort of rebuilding to make them right. I beefed up the landing gear mounts as well in mine.
Dan