After trying both Gorilla Glue and epoxy for hinges, I like 30 minute epoxy better, primarily because of the foaming factor. It's touch to clamp control services firmly enough to prevent the foaming glues from either pushing the hinge out of alignment, or getting into the hinge joint. As has been mentioned, the epoxy with a drop of oil in the hinge seems to prevent that problem. If you're concerned about the Robarts pulling out of the hole, what I've done with the 3/16 size is drill a couple of small holes in the hinge point body so the epoxy can grab a little better. Not sure if this actually makes a difference, but the theory seems sound. It would be tough to do this on the 1/8 sized Robarts.

One alternative to Gorilla Glue is Loctite's Sumo glue. It doesn't foam as much, and clean-up seems a little easier. But you still need to check the alignment for 1-2 hours after installation to make sure nothing's moved.