In this video Saito Morihiro sensei does just one thing - Irirmi. For just under two minutes. And his is utterly fierce. The video was shot by Stanley Pranin of Aikido Journal. The ukes are Bruce Klickstein and Shigemi Inagaki. Towards the end Inagaki runs into some trouble with his ukemi (lands on his shoulder) and rolls off the mat. Klickstein's ukemi is wonderful throughout.