Now, Frank, I think this is a very interesting idea.
I must say I don't entirely agree with all your assertions, but the fundamental concept of a live class is a good one, and different than the normal static video session, which I like. I do however think you should consider recording them, if only to make them available to people who have to miss classes (due to scheduling), etc.
I do speak from experience here as my "day job" is helping to run a vocational school that has a distance learning program. I think finding an effective combination of realtime and offline learning will be most effective. Give people a static video going over the base techniques you're teaching, so everyone can get solid with that at their own pace, then hold a live class following that where you talk about the video tutorial more in-depth and answer questions. This is similar to the standard college model of "read this text for next time" and then lecture on it. It seems to work quite well. You lay the foundation in a repeatable, standardized way, then you maximize the value of your individual attention time because you're not having to teach through the basic concepts of the lesson, you're focusing only on the harder issues, the things people missed.
Just my 2 cents. Can't wait to see what comes of this.
- Oshyan