Just be sure you bend the surface to max throw before you glue. As far as the amount of glue. I use 4 drops on each side. Two on the aile side and two on the wing side. Then flip it over and use 4 more. Use gravity to your advantage also. Have the aile down when glueing that side and the wing down when glueing the other.
There is also a difference in hinges from brand to brand. I like the Great Planes hinges. They are a little thicker than some others and have a lot of the "hair" for lack of a better word on the surface of them. The Radio South ones for example are smooth on both sides. Not knocking them, I just like the rougher surface of the GP.


David