Yeah... performance requires certain movements and certain looks, but can be detuned easily for a more relaxed look. The reverse is normally the hard part
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In certain places of the turn you also look fairly close, trying to get performance
In that video, the fun was touching the knees to the snow. Not something I'd try to do either
Interesting question: to aim for style or performance. I think it's a mix of both, at least for me, but the performance is definitely the heavily favored outcome. Not style or look, that others perceive, but the performance, which is what I feel.
But I also like how I look here for instance, going for max bending of an i.SL (when not avoiding the camera and discarding setup artifacts and poor technique, glaring in places):
... although with a somewhat different approach you could change the look in transition for instance, if you wanted and still get more performance - just saw this recently, nice relaxed skiing but with some performance:
Or the same skier from the video you didn't like the look of, going for same sort of detuned, relaxed turns:
But generally, a certain level of performance requires certain inputs and similar looks, with differences for body variations, some personal style flavor and compensations for strength and technique. That's why I like slalom as the measuring stick - you just can't do a "proper" carved SL turn shape unless you do certain things right.
It's very much like the zipper line in bumps (technically too, in fact). Good zipper liners tend to look similar. You can't really do a zipper line like you do and not "look" a certain way, so which was the goal there? The performance, the outcome or the look?
cheers
p.s. I remembered this comparison of techniques across varied levels and types of SL skiers, strikingly having a similar look/:
You can see the same type of transition, if we're looking at one place in the turns, accounting for some personal variation, for sure. Except the last one. That one's a duck.