Yes that is a huge blunder by Kyosho not to get the C.G location right for this jet. It would be a terrible shame for this blunder to give a bad name to this plane and squelch developemnet of more small D/F planes. I got one of the later versions with the addenum. I fly mine at 175mm and would not recomend it be futher aft since stablity seems to be close to the neutral point here.