Steve Vai did a ~30 min WEB lesson yesterday associated with Berklee Music attempting to beak a record for # of people watching a guitar lesson at once. Don't know if he accomplished that. However, he said somethings that are right out of Justin's playbook (actually lesson book). Practice new things slowly, Listen, get them perfect before you speed up, Listen to the sound and to your mistakes to improve ... Sounded very familiar to me, like the Intermediate Method course. He showed the spider exercise as a good left hand right hand coordination development tool, and the finger gym to improve finger dexterity (didn't call them that but they are right out of Justin's Techniques area). One new thing he added was making a face while you are doing bends to improve your intonation (half kidding I think). Also insisted on using a drum beat or metronome during practice to get in "the groove" sounded familiar to doing scales. Also said, if you have trouble with eg. a chord change focus on it until you get it. Can you say "One Minute Changes". All in all a dramatic affirmation of the teaching method that is found on Justin's WEB site by a really well know and great guitarist.