It's the open of the turn that I'm not getting on edge quite cleanly enough. My exits are clean and smooth pretty universally, but sometimes I get on it too late for the next turn and spray a little before I hook up and arc it again. Instructor dude says I'm coming in too narrow and flat at the top and that's why.
I'm guessing a little between the lines, and seeing you start the turn with a flatter ski "to get the turn started". Once the turn is established, the rotational forces allow you to create higher edge angles, there is now something to lean against. You can now pressure the ski as well as edge it, the edge grabs, the ski bends, and that lovely slicing the track feeling results.
I've heard many instructors talk about moving down the hill, moving the hips downhill of the skis, center of mass crossing the skis, or other similar descriptions when talking about better turn initiation. I haven't heard much on 1) how far do you move and 2) why you do this and 3) where exactly you're moving to.
This is something I've been stewing on for a while.
I think moving the hips downhill is just one way of saying (not very descriptively) move the hips downhill in such a way as to both position them where they will need to be once the turn has started, and to
position them so that they build immediate pressure on the ski once on the new edge. In other words, if the hips or COM, your choice, travel in a direction that is different than the skis are pointed and converging, and the skis are on edge, immediate force results. The COM is accelerated (directional change is acceleration) towards the new direction of the skis. Boom, instant pressure to the skis. I've said before on this board that one thing that differentiates an advanced skier is knowing where to place your body in advance of needing it there. This is how effective early phase turning happens.