Here is a beautiful example of a winged foot - not too much prolongation.
Some Highlights:
- Dancers with weak or untrained ankles are more likely to sickle their feet
- Winging can become dangerous if that foot is supporting weight, so use caution when teaching students to wing their feet.
- "Those teachers who approve of winging should explain how a winged foot fits into the classical line as a whole, to prevent winging from becoming an empty affectation."