Yes, you balance a low wing with the plane upside down, a high wing plane right side up. I was testing the balance point (cg) on both sides to see what the difference was. I had the plane perfectly balanced on the "pencil powered CG rig" so I could snap the picture. I used a piece of masking tape to get the forward most, rearward most and recommended marked without drawing all over the plane itself. I used new pencils so I didn't have to accommodate a point on the end that went into the board.