ski teaching: fast progress or solid technique?

Is there a difference between the way you start training someone who is intended to become a really good skier, maybe a professional, and the way you start training a tourist who will rate the ski school on how quickly they progress to getting down a run of any given colour reasonably fast and safely, without too much to regard for whether they are laying good technical foundations?

not really, i would say that the same basic principals apply to everyone, just the speed at which they pick them up will allow you to do more or less exercises and drill at a higher level sooner

Ive done the exact same demos and drills after 2 days with some as i have after 3 weeks with others