It's important to remember that while practicing a given technique, uke must go along with it. If he resists, he is creating the need for you to switch to a different technique in order to use his energy.
Actually I find now that with "proper" feet position, arms not bent, and slight torso twist its possible to transfer the energy from a slight *rotation* of the hips into the uke's elbow which forces him to turn even if he resists.
I was experimenting recently with this, in slow-mo, and it seemed to work.
Maybe I'm wrong here though, but it sure didn't feel like it.