I know, thats what i'm dealing with now. I have a Hanger 9 AT-6 Texan I built with the Saito 91. I had to add 4oz of lead to the nose to get it to CG and now it flies like a dog...I am ready to sell it and get something more aerobatic, thus looking at the Extra 300 or Edge 540 (although the edge looks heavier to start with which I certainly don't need)...Bill