To sum it up:

The SlotMachine doesn't work well to center or straighten an existing slot that's angled or off center. It's excellent at widening existing slots and making new slots. The hacksaw blade does it all. (I got and use both together.)

Hinge Glue is AWESOME STUFF. Better than epoxy.

What used to take an effort and some gluing skill/technique and some time is now dead easy and simple to do and takes just a little time.