OK Dusty, I have a moment to respond now.
First, about the progression. Janis and I filmed all the footage for that video in 3 runs. We did not plan on producing this video as we were shooting it. I was working on versatility with her that day, and filming her performance. My objective was to have her attempt various forms and levels of edging skills. I started her off with the big pivot variety, as shown at the beginning of the video, then directed her to modify her execution in some manner for each subsequent video clip. The order and manner in which I had her modify her skiing was exactly as shown and explained in the video. And each of the clips you see was a first take shot. She was only given a single attempt at each modification directive I issued.
It was only after viewing the footage we had that it struck me to make this video for others to learn from. To help them evaluate where they currently are in their own learning journey,,, to show them what the next steps are and where they can take them,,, and to inspire them as to what is possible for even less than average athletes to achieve in this sport.
So, the short and direct answer is, no, she did not learn in a few days all the skill levels you see her present in the video. She has worked hard and long to acquire the broad skill base and versatility you see her display in those clips. And in that fact lays part of the message of this video. There is a clear and definitive map for getting to this level of skiing. It involves the learning of a broad set of foundation skills. Once learned, these foundation skills can be blended together in a huge assortment of ways, making possible the type of on-demand skill and versatility Janis shows in her skiing. Such skill and versatility prepares a skier with the technical ability to instantly adapt his/her skiing to the specific needs of any situation, slope, snow, or terrain. These foundation skills are the same base skills the best skiers in the world have learned, practiced and used to get to the top level of our sport. While the levels of performance we see displayed by the heroes of the sport are augmented by rare levels of innate athletic ability, the road to realizing each of our own individual potentials is via the same foundation skill development. This is exactly what Janis has done, and considering the physical challenges she has been saddled with, she makes it quite clear how skilled even the less than averagely gifted person can become by following this time proven formula.
Dusty, as far as your skiing: I'm very impressed and pleased that you were able to identify the technical nature of your skiing according to the stages depicted in Janis's video. Your analysis was very good, spot on. You do have a pivot at the beginning of your turns. And yes, you are using your body to power that pivot. The pivot you do also throws your skis very sideways for the duration of your turn, as such you also show the wide track steering Janis displays in the second stage of the progression. Our immediate goal for you should be to eliminate the pivot, and adopt a more narrow track steer for the entirety of your turns (Janis video, stage 3).
To get there, you need to work on developing your steering skills. Steering uses the muscles of the core and legs to power the twisting of the feet. Where lower skill level pivoting requires gross and unrefined body movements, and results in massive uncontrolled amounts of ski turning and harsh use of the edges,,, high quality steering is very smooth, balanced and precise. You can practice steering in stocking feet right in on your living room carpet. Standing with feet a comfortable distance apart, and equal weight on each foot, and feet tipped up slightly on their left sides, and hands up in a skiing position,,, use the muscles of your legs to VERY SLOWLY twist your feet to the left. As the feet twist allow the upper body to be pulled along and change direction in harmony with the feet and legs. Congrats, you just steered a turn. Now roll your feet over so your standing on the right side/edge of them, and steer SLOWLY back to the right. This is the movement pattern you are going to employ on skis to produce a high quality narrow track steered turn.
As you practice your steered turns in your living room you will find that by changing the intensity by which you use your legs to twist your feet, you can change the speed at which you turn. The same principle is used on snow to adjust the shape of your turn. Steer hard and you will make a very sharp turn. Twist softly and you will make a very long and gradual turn. Learning how to manage your turn shape through this means is a major part of learning high level steering skills.
On snow, start out on a very flat hill. The slope should be such that you can go straight down for a good distance and feel no anxiety with the speed, or about being able to stop. Point yourself straight down the hill, release yourself, start to slide on flat skis, then tip your feet very slightly onto their left sides and begin to very softly leg steer your feet to the left (just as you did on the carpet). Keep turning until you turn uphill and come to a stop. Turn around and observe the track you left in the snow. Is it narrow or wide? Our goal is to make it as narrow as possible. If it's wide, your twisting your feet harder than you need to to make turn you did. Repeat, repeat, repeat,,, in both directions,,, trying to make the track you leave in the snow as narrow and consistent for the entire turn as possible.
Next step, try modifying your turn shape. By adjusting the force you put into your leg powered steering, change the shape of your turn. Make some longer and more gradual, such that you travel farther down and across the hill before you come to a stop. Then try steering harder, and making your turns sharper. Always trying to keep the track you leave in the snow as narrow and consistent as possible. Caution that you are not turning sharper at the beginning of your turn than in the middle and end. If anything, we want the beginning of your turns to be MORE gradual for the time being. Need to make sure any element of pivot has been totally nipped in the bud. And remember,,, you are still only doing single turns, starting in the falline (starting out facing straight downhill).
Once you get comfortable with single falline turns you can try linking a couple. Start out in the falline,,, roll your feet on left edge,,, softly leg steer a left turn about 30 degrees out of the falline,,, slowly roll your feet over to their right edges,,, and softly leg steer back the right,,, continuing turning to a stop. Check your tracks. Make sure both turn tracks are consistently narrow.
From there, link a series of 30 turns,,, then 45 turns (end your turns when you are 45 degrees to the falline),,, then 60 turns, then 90 turns,,, and even 110 turns (finish pointing slightly uphill). 30 turns are easier to smoothly initiate and steer, that's why we start with them. It gets more difficult as you turn further out of the falline because gravity challenges your balance more at the beginning of the turn. Not to worry though, a bit of practice and you'll get the balance figured out so you can still maintain the quality. Once you can link a variety of falline degree turns, return to practicing modifying the intensity of your steering. A 90 steer turn can be very long and drawn out (called a large radius turn), or it can be very quick and sharp (called a short radius turn). You manage this by how hard you leg steer, just as I had you play with on the carpet.
OK,,, that should be enough to last you a while. There are more steps to go after this, but this should get you off to a good start. Oh, a hint for you: I noticed in your video you have a very wide stance. As you practice these drills try to bring your feet together a bit. Stand narrow and tall, and your balance and leg steering will be much better and easier. Fore aft balance will be another area to work on too,,, but we'll save that. For now just try to maintain a nice centered fore/aft stance, with weight spread equally along the front and back of the base of your feet.