"Building tip - Center of Gravity assessment. The recommended Center of Gravity range is 8.5 - 9.5” measured from leading edge of top wing. This is just behind the rear Cabane. This is done with the wings off. Use the positioning of the receiver battery and ignition battery to assist in adjusting the Center of Gravity."

This was copied from the both versions of the manual. Do you REALLY check CG with the wings OFF?

Joe