Dchan, I will add my two cents FWIW. I think what is needed is some added movement and refinement of the others. The $64,000 is how do you accomplish this? I don't think you will get there by adding more aggression myself. Instead I would ask you to try this simple progression when you get back on snow. This is one way I find to effectivly get there.
Find a nice long green or blue groomer, and starting out without poles, ski a run or two of Trovalta turns( I'll explain). Start these turns by extending your inside arm and hand up and forward as high and forward as you get it. Keep this extrended posture throughout the turn. This should draw the body long from the inside shoulder to the outside foot. Really stretch this out up and forward. Exagerate the movement. You should find your stance narrowing and you should feel yourself stacking up structuraly to the outside foot and ski and balancing to the outside ski. Keep the inside ski on the snow and working. this doesn't mean it has nothing to do. Spend some time here in this really tall posture. Ski at least two or three runs skiing this way trying to feel how and where the functional tension resides in your torso and core, and how this relate to how the skis are behaving.
Next Ski the opposite end of the spectrum. Ski several runs keeping your palms over your knee caps. Really focus on staying centerd over your feet as you ski. this will force alot of foot and leg activity to happen. Let the long leg short leg happen as needed, but always try to keep your palms over your knee caps. Pay special to where the pressure is under your feet, how much foot and leg activity is happening inside and outside, and relate this to how the skis are working.
Then spend several runs combining these two exercise. Make the first half of your turns like travolta, extending the inside arm up and forward as tall as you can get, and then in the second half of the turn, keeping your inside arm and shoulder up and forward, slowly flex down and place only your outside palm over your outside knee cap. really focus on both of these extremes, keeping the movements slow and progressive. Though I will say that the rate of these movements will increase as he time you use them in each turn is cut in half. As you do this try to refocus back to the internal sensations you identified in the previous runs.
People may look at you funny, but I will just about bet that you will be changing some movements and refining others along with more effective timing, couped with staying more functionaly relaxed and centerd. Give this a serious try this fall.
After this is well rehearsed, try making the movements, keeping the rate, intensity and duration the same, but start keeping your arms and hands in a more functional position. Instead of raising the arm to start, think of raising the shoulder, and it works for you, the inside hip as well. Letting both shoulder and hip move forward through the turn. The outside hand should be slowly alowed to come up and be kept parallel to the snow.
Then take these movements and range of movements and apply them to skiing of the groom. If you try this progession, let me know how it worked out for you. I've had good success teaching this progression and with my own skiing too. Later, RicB.