I personally don't teach high falls, although many students have asked me to.

I think that if uke has to learn a high fall in order for it to be done, then if he doesn't know how to do it, the chances for him to get injured are very high.

If nage learns to throw, even the person who has never learned Aikido before, then nage's Aikido will never come into question.
Erik Calderon http://www.shinkikan.com