BTS... I like a lot of what you've said, but I think the above statement is a bit broad and can be too easily miscontrued. I think I would reword it. I think I might say:
You want to balance on the outside ski AS SOON AS IT IS APPROPRIATE within the turn development. A common problem is that skiers, in their attempt to get to the outside ski TOO EARLY they move the CoM away from its ideal track and interrupt any flow they might have had otherwise.
The direction track and travel of the CoM is MUCH more important to pressure and carving than focusing on pressuring the outside ski. When the body is traveling in the right path in relation to the skis pressure distribution is then REGULATED by the relationship between an extended outside leg and a retracted inside. If I want more inside pressure, I merely push down my inside foot (often difficult to do because of existing forces). If I want more outside pressure I retract my inside a bit more. But the secret sauce that allows all of this to happen is having the CoM in the correct, transitioning place throughout each turn.
Additionally, I often find myself delaying the transfer of pressure to the outside ski much later than most and am still stable and completely balanced. I don't think of pressuring the outside ski as "stepping on it" as many do, but "setting" it in the snow as I retract my inside leg to do so. The key to it is how my CoM tracks within the turn. This enables me to adjust instantly in bad conditions where I might need pr want more pressure on the inside ski. I take the approach that it isn't all about the outside ski, but adaptations stemming from the CoM tracking in the correct lateral position so that pressure can be regulated thru extension and retraction.