Robert McLune:
Yes, I have done a few. It is very well designed as a way of giving people a chance to have a retreat experience at very low cost and very high convenience. You can sign up for just one part, or the whole weekend. The cost is minimal, and if you ask they will usually give you a scholarship. Some people on the call are total beginners, others are very advanced. You can ask questions, and a recording of the session is available afterwards, if memory serves. Obviously, Shinzen (or one or another of his senior associates) will be leading the HPP from the point of view of Shinzen's Basic Mindfulness system, so it would be wise to read the relevant section of the practice manual to get the terminology straight before the call if you don't know it already. I was struck by how people from all over the globe were on the line. It was quite cool, the sense of virtual connection to others doing the practice.