May I just say that I've read every post in this thread but said nothing because I could neither add to the discussion nor explain things as clearly as some of you guys. The level of knowledge about this subject here is truly impressive. And...not to single anyone out, but Ascend Charlie should be teaching this stuff if he isn't already. His explanations are incredible in their simplicity and clarity. A lot of us old-timers know this stuff but have a hard time putting it into words and terms that a newbie might understand. If any pilot were to ever wonder why the rotor does certain things, I would point them to this thread. Nice work, men!