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Inside ski and foot management needs to be trained and taught. It is rarely developed completely without guidance and coaching on it's own. Two of the Masters on the World cup of inside ski and foot management as seen here.
For the complete article and photos click on the URL above.
Above is Felix, how can you tell he has inside foot management, because he has pulled the inside foot back, the ski tip is still on the snow, but the tail is lifted. When you practice inside foot management this is exactly what occurs.