http://harbskisysems.blogspot.com/2015/08/fenninger-uses-counter-acting-and.html
In this Shiffrin video clip, it's hard to see because of the weird editing, but it's totally different skiing than last season. Dropping the hand, rotating, right and left turns are different.
Take note of the difference in shoulder turn and hip counter acting. This is the difference between 6th and 7th position in the world cup women's GS and the best.