Nick Hawkes' Snatch Training at Mike's Gym: Part 1

I was curious about conditioning time. I have never worked Olympic lifts but have powerlifted some years ago. Seeing more technique in the Snatch than say the deadlift, can you give me a time frame you generally see improvement in the movement when working with a beginner? What marker do you look for as when to add weight?
Then, this one is more general than the first: "How much conditioning should I go through to begin CrossFit or can I adjust the WOD at less reps or weight as a modification?"

Thanks for the help

John, drop me a line - optimumtraining@shaw.ca and i'll throw you some ideas and examples of time frames about o-lifts and CF...
OPT

Some new cues here that will help me teach this. This is quality.

I am astonished at how wide the landing is supposed to be. I had no idea taller lifters should land wider. All this time I've been practicing landing narrower when it seems I had it right to begin with.

This also means I've been overhead squatting too narrowly too. I always thought the width of the feet was the same as for air squats.