I am resending my first comment which seems to have gone astray. Alas I cannot view the video and will attempt with a Windows computer (I use Linux). I am pleased to see that John's work is continuing, since the Human Potential Research Project/Group's workshop programme was closed. I must correct the attribution to me - I was the Director of the HPRP for a while and did run the Facilitator Styles course validated by the Institute for the Development of Human Potential which was a 2 year programme based on the model. It is quite a splendid model, comprehensive and flexible, accommodating a huge range of types of group. I used it myself and taught the model over many years, having also attended John's 2 year training, amongst others. I am currently updating my web pages at http://www.kilty.demon.co.uk/hprp.htm with a few pages on the model. I wish you all well in your efforts to apply it.