I thoroughly agree on starting a thread which is all about high notes. The:
How to play them
Generating a full sound
And of course excercises that you use to get there.
Personally I am curious to know what everyone else thinks and says about them. Do people have experiences to do with them. Any breakthroughs that cause you to realise 'hey, thats how you play a double C'.
Please do take time to add!!!!