Miles Kessler Sensei and Bjorn Saw Sensei demonstrates the five Kumi-tachi and Ki Musubi no Tachi at the Integral Dojo in Tel Aviv, Israel, in March 2013.
Added is film footage from the Iwama Aiki Jinja with Saito Sensei teaching a weapon class back in 1989 (?) with Miles and Bjorn practicing the fifth kumi tachi.