Hi Skimjim,
I have done this when I have been drinking, so I can relate
It's very hard to hold back especially when you are so passionate about a subject and you know 95% of skiers don't have a clue. However, I didn't show them me performing the movements myself, but I used, Harald, Hirsher, Mikela and Reilly and many more who are expert PMTS skiers.
1. Go and skii with her and then show her how its done
2. Get Pictures + video of the best technical skiers in the world helps. (However, sometimes the brainwashed will close their eyes or get angry)
3. Before doing number 2, agree before hand what they think and what your model is (so they cannot go back and say "no sorry that's not what I meant, this is what I meant" get this part agreed and nailed (Then with pictures and video rebut everything they just said/ or thought ). Do you agree the best skiers use a narrow stance? They say "NO". Then show Reilly + Harald. Do you agree WC skiers most of the time are setup bow leg? so the time when they show a wide stance at transition when they flatten the skii, in the belly of the turn it's very narrow, hardly any daylight in between the legs, show them hirsher. Show them the difference between the vertical and horizontal separation, pictures and video ("but look his inside boot is touching his outside knee how could he possibly have a wide stance")
4. Show them hirsher pole tap and a video how he holds the counteracting.
5. Show them Harald presenting in 2013
I have more experiences of this stuff just because of where I skii, so my phone is ready to go with video, slow-motion, Reilly, pictures and much more. Harald's Blog is awesome. You will know its working when...
1. They get pissed off and say "I don't want to talk about any longer"
2. They close their eyes
3. They stop watching and start making excuses of why the skiers you show them are making these movements and others skiers do not
But remember: Don't argue with idiots and brain washing is hard to reverse.
Jeet