I agree, Pro Bond will hold the hinges. But it is sloopy to work with and will continue to expand out of the hinge slot for an hour or better. Once it tacks up, you cannot clean it off with water. Alcohol will barely cut it in it's tacky state.
The Formula 560 canopy is a joy to use. If you don't trust it, do your own test. You will really appreciate how easy it is to clean up and if you get it on your aircraft, it will wash right off. There are some places you just have to paint before you hinge. It is in those places that the Formula 560 canopy glue excells. Same with monokote. You'll want to cover before you hinge. Again if you get any of the other glues on the surface of the monokote they can play hell getting them off, especially if you don't catch it right away. The Formula 560 canopy glue works. Try it ... you'll like it.