Originally Posted by nmmountainmom
I' If I started skiing in 1981, what year did I cease knowing how to ski correctly?
Welcome to Epic Mom!
The year you started kicking your dog is when you ceased knowing how to ski correctly. What? You never kicked your dog. My bad. Then you never started to ski incorrectly.
There is no right or wrong for ski technique. There are more efficient and less efficient techniques. There are more effective and less effective techniques. There are safer and more dangerous techniques. There are fun and less fun techniques. There is no most efficient, most effective, most safe and most fun technique. The beauty of skiing is that you get to choose what is right for you. Some skiers find the quest for more efficient technique leads to more fun on the snow. Other find the quest to be a total bore.
As time passes, technology changes and our bodies change. If we don't adapt to these changes, we're going to lose out on ... (efficiency, effectiveness, safety, fun, etc). Sometimes the adaptations are small and easy (e.g. rocker technology), sometimes they are big and hard (e.g. injury). When shaped skis were introduced, some skiers instantly started skiing better without making any changes to their technique. Some expert skiers hated the new skis because they skidded way too much and were unstable when a traditional unweighting turn initiation technique was employed. Some expert skiers loved the new skis after they learned to turn with their feet less and tip their skis on edge a little more. I'm not sure where you got the idea that instructors think you need to start over at square one. My standard "welcome back, intro to shape ski" lesson is a lot like most non-beginner lessons: introducing a few tweaks to generate more (efficiency, effectiveness, danger/safety, fun, rounder turns, smoother turns, etc.).