Beryl. It is a coincidence that I saw this. Moments ago I received a returned message that I had sent to you and Tom earlier today seeking answers to a problem I have gone through in Ashtanga. Apparently, there was adomain problem. I am your man to explain what you want to know. I studied Physics (as a major) in college, and I have been doing Ashtanga for a few years. I think I see where you want to go with this. Perhaps we may help one another. Feel free to write me.