I had an incipient departure just the other day. I fly an Apis M. In
deconstructing the event, I saw the nose dropping and not responding
to back pressure so I put the stick forward and it was all over in a
second. I think when the aircraft doesn't do what it should for the
input, there should be a reflex alternative action. Either flaps or
stick forward is probably ok. The stick feels more like it has more
authority to me.

In a fully established spin, flaps have to come off as you will likely
exceed the white arc in recovery.

The dicey scenarios are the ones where you have to think out what is
going on before acting. The whole thinking thing is easily derailed.

Mark