Well, now we're going from a look at vector-resultant jin/kokyu forces to something that is spiralling up and down the limbs. If that's true, we should be able to discuss what it is that is spiralling.
Unfortunately, I know very little about it and I'm just mentioning it from a possibly erroneous memory of Dan's posting about it. But I think Mark has mentioned it as well. I'm really more familiar with Aunkai stuff and I only have a toddler's understanding of that.
And thanks for the interesting yin/yang.