Came across a site that reviewed online guitar courses so I thought I would look at it. While stating the efficacy of the course the author stated that its members were a "cult". Well, if we're a cult - "Long live the King!" (Or Supreme leader, or Guitar Guru)I had plenty of disappointment in the past with guitar teachers - probably my fault as much as theirs's - but I couldn't seem to put the pieces together. Tony, your approach ROCKS! I wish all teachers in all subjects used your data driven approach.