JonBoy2, thanks for jumping in. I'm sure I'm going to have a lot of questions. You got me thinking of the CG. I measured 7" from the molding wing root on the fuse. shown in the picture attached. May be they are all measuring from the CARF wing root. When I do that, the 7" comes out in the center of the wing tube like you mentioned the other pilot flying. Are you planning on using the throws and expo as suggested on the standard carf p-51? Rob