I cut hinge mortises on the face frame and door frame prior to glue up. One screw per hinge is installed using the edges of the hinge leaves as a guide for alignment. The leaves are not the same length so I knew I would be off some.
How exact a fit is considered a reasonable fit on flush cabinet doors as far as "in and out" flushness of the door to the cabinet? It is easy to feel the level difference but it is not very visible on this cabinet. Of course "feel" is important on some parts of furniture too. The fit varies from .010" below flush to .015" above.
I've not mounted flush doors on a piece I wanted to call furniture and really don't know what is reasonable. I was surprised that first fit of the hinges was this close.
David