I would not use a thicker CA. Thin is all I have ever heard to use. It will "wick into" the hinge and balsa better than a thicker CA. Are your slots too wide where the hinge is real loose in the slot? The best CA adhesion is when you can barely get the hinge in the slot. Can you cut new, thinner, slots if that is the case? Some say to put about 3 drops on each side. I use more than that and have never had a hinge pull out. Once applied to one side .....hurry to the other side. Apply there, and
work the hinge a little as, or before, the CA sets up. This will keep your hinge more pliable. (some also use a crayon to draw
a line across the center of the hinge on both sides. The wax will repel the CA in that area and help the hinge be more pliable....
lownslo