BTW:

On that CG Zipper, I glued the rib templates to balsa sheet with rubber cement and cut them out one by one with an Xacto knife and cleaned them up with sandpaper. It was an elliptical wing and only two ribs were alike. Same thing on the stab. A beautiful little plane when I got done. Covered in silkspan and painted with dope. The other technique works well when you have several ribs that are the same (straight wing section).

EJ