That being said, it is not a technique that is practised by all Aikdio dojos. Further, there are a lot of Aikido dojos (particularly those who exclusively practise Ki aikido) who do not include koshi waza (hip throws) in their syllabus in any form.
At our dojo, the technique is practised as well as many other forms of koshi waza.
Technical instruction – Judo Application
In the below video detailed and insightful instruction on how to correctly perform Osoto gari is given by Sampson Sampson (8th Dan). Sampson Sensei generously posts many instructional videos. Those interested in quality on-line Judo instruction are recommended to peruse the Sampson Judo Channel on You tube.
Aiki application – Aikido Warrrior Dojo
In the below video, senior students from our dojo can be seen practising Sode tsuri komi goshi from a traditional attack in the form of 2 should grab (Ryo kata dori).
Sode trurii komi goshi – Paired Aiki weapons perspective
Like many Aikido techniques, the origins of koshi nage trace back to the battlefield. With this in mind, we recently resolved to study the technique in the context of paired weapons practice, specifically bokken (wooden sword) vs bokken and jo (staff) vs bokken. Below is a video recording of our first efforts at our dojo in this regard from a few years back.
The informally recorded demonstrations are intentionally experimental and involve subtle differences in terms of hand placement on the weapon, form of ukemi, method of moving off-line, atemi, feet position and balance breaking. All in all a very useful and informative learning exercise.
As a qualifier when viewing the video, please note that our dojo is not a sword or jo school and we are not about learning to “fight” with these weapons. For us, the purpose of paired weapons practice is to magnify errors in our Aikido technique and to give us the opportunity to apply Aikido principles in different situations.