Years ago I built a full size Christen Eagle.
I had to build and glue all wing ribs.
I used a formaldehyde based glue.
For each batch of glue I mixed (powder and water)I glued two pieces of the wood together on end(1\4 inch overlapping each other)when the glue dried I placed the glued joint in a vice. Tightened the vice till the wood broke. If the wood broke at the glue joint first the rib was unusable. It always broke outside the joint for me. I wonder why modelers have not used this glue in there models?
Stan