I have tried the same experiment but w/ epoxy and Robart hinge pts. I tried them w/ a mock up trailing edge of 3/8" so the point would stick way out the back side w/ similar results. I make sure there is epoxy on the hinge pt and in the hole. The barbs on the hinge pt help protect the glue from all being pushed out the back when it is inserted. Also, I stand the surface vertically, so any glue forced out the back will flow back towards the hole.