Well Alec... I beg to differ, I dont expect my uke's to take a fall if my waza are not effective.... I really don't hold much with people that insist that you have to do that.... to me it's not neccessary if you have good control over his/her balance, they will fall anyway! To me the problem with most aikido that I see today seems to lack any real attempt at balance breaking..... But then coming from a Shodokan/Tomiki background we tend to see it in another way....
Tony