RE: CA hinges came loose.
Before installing a CA hinge it is a good idea to check out the material used itself.
Some ARF's arrive with a CA hinge material that appears to be fibers glued on a plastic substrate.
The problem with these is that over time the glue used on the fibers will age and loose adherence.
I've had a few of these cheap CA hinges pull out completely and very cleanly...
When they do, the plasitic part of the hinge is exposed and looks transparent and shiny.
This has nothing to do with the thickness of the hinge slot, rather the aweful material used.
In contrast the full fiber hinges sold by dubro and others have held up very well over time for me.
These use a different material with no plastic substrate, so there is nothing to come undone over time.