This video, https://www.youtube.com/watch?v=JdX_1rc9ZqQ&index=3&list=PLy2hh7wTmMN9VHoXGokD6RYsRFpHye7pK, can also be seen at https://www.youtube.com/playlist?list=PLy2hh7wTmMN9VHoXGokD6RYsRFpHye7pK.