Re: When to introduce breakfalls
With PeterR - as soon as possible while keeping it safe(ish). Introducing it later seems to add a "wow, this is special and is going to be really really hard" barrier that's unnecessary.
Oh yes, admit it's going to hurt at first is a good idea, as is showing the standard ways of doing it wrong (yes, this hurts the instructor a bit, but I've found it's worth it in terms of getting the message through quicker)
Yann - ditto to standing breakfalls in first grading