I don't think that Nolan or any other WC SL skier is actually "waiting". The release of the CM downhill is timed to coincide to get the leg long at turn apex, and turn apex is a precise target.
I think that at some point, the skier *must* consider the relative paths of the upper and lower body. I know that is not the general focus of PMTS but there *is* instruction that tells the skier to "get upside down". Yes, that is an outcome of proper movements but these essentials are not done in isolation -- there is always a goal that they are attempting to achieve eg. TFR, Brushed carve etc... The essentials are the nuts and bolts of skiing. How they are combined determine what occurs -- turn size, shape, direction etc...
As Harald says on the performance DVD, you need to let it go to ski well. The movements should be in your "performance memory" and so they will help you achieve your goals. Whether that is skiing a mogul field, glade, race course at speed or groomed pitch in style, the essentials are supportive of your goals. Certainly performing the essentials well can be goals themselves -- no question about it. it makes groomer skiing fun.
To get back to the mechanics, yes, I think that Max is fundamentally correct.... tipping and flexing more will get that outside leg long, provided that there is room for the inside leg to flex more. If the skier is not used to getting the inside knee to maximum flexion, then the crouch will certainly develop. In my opinion, there are several causes of the crouch -- ie lack of leg lengthening:
1) Wide stance.
2) Aft balance.
3) Poor ROM of knee flexion -- above parallel.
in the wide stance, tipping is compromised. With Aft balance, flexing is compromised. As Max says, both of the essentials of tipping and flexing are necessary to produce a long leg. I see several things that can provide fixes:
1) Power release -- addresses the lack of knee flexion.
2) Weighted release -- addresses stance and balance, "getting upside down".
3) Strong arm -- addresses counter balance, counter action and leg lengthening. (Thanks Matt, CB/CA is very necessary).
Again, all should be done with a narrow stance, and centered balance. I think this weekend will be focussed on those three items. I just noticed, they basically address every essential.... So the drill will be a "power weighted release with strong arm"