I agree that the ankle roll is key to initiating a GS turn and gradually increased throughout the QCT (quick carved turn)
Yesterday I made a post on the importance of "ankle roll" on another board. I'm discussing how important it is.
I think it is time to discuss an important facet of angulation that has not been explored in detail, how "toe grab", foot twist and ankle roll effect "ski steering" which is extremely important when initiating the next turn.
For me, when I'm making QCT's, I'm really concentrating on "feeling" my shovels and making them an extension of my foot. At exactly the same time, the pole flick, down weighting and hard uphill ski edge set, accomplished by pushing my uphill toes forward and down with a sharp foot "stomp", to finish the turn loading both ski's with energy for the sequential rebound that will "launch" me weightlessly across the fall line. As I sense myself becoming weightless, I simultaneously use A&E by bending my knees, pulling my feet back under my body and while gradually starting to push down with my toes with enough pressure to "feel" my ski tip just contacting the snow. When I say I'm pushing down with my toes, the is done in combination with the ankle pressure, no leg pressure at all as I' m still pulling my feet back under my body by bending my knees.
When I first initiate my tip into the turn, I'm still weightless, I start twisting my toes down and inward while at the same time start rolling my ankle down and inward. My ski has hooked up now and is carving around the "clock". I've floated from 12 o'clock to 3 o'clock, in this time I've gone from "tip contact" to "full shovel contact with slight load. and now my body weight is starting to come down and I'm able to add gradual increased pressure to my downhill ski shovel with my leg.
From 3 o'clock to 6 o'clock, I'm going to continue twisting my toes and rolling my ankle in combination with rolling my knee downward and inward with my turn, continually loading my entire ski as it tracking towards intersecting the fall line.
I'm a terrible technical writer. The bottom line is, feeling the ski with your toes and rolling them with your ankle can help drive the ski through the arc of the turn. is when making QCT's (quick carved turns)
Here's a video that demonstrates QCT's where "ankle roll" is so important.