Thanks for the advice at that measurment I am about right so I am not stressed anymore. I was before because it seemed odd fot the CG Machine magnufacturer to set a CG on the wing tip... well hope it flies well. How dificult is it to fly the patty??? I have two other airplanes one is a GP Supersporter and the other one is a Pipercub, is this plane much dificult to fly??? Thanks for the help...