Hi Ignatius, I just realized that you wrote kokyu ho not kokyu nage...
Kokyu ho dosa in Doshinkan has 10 different very specific variations, with very specific outer physical details. Same issue as kokyu nage really...if you'd like, pick a basic kokyu ho (say, from a static grasp and hold) and describe the basic physical parameters you'd like to limit the discusion to, and then we can get into the "inner workings" so to speak.
Best,
Ron