I'd like to see a section on "double tapping". Not sure if this is the right word for the technique, but I am referring to when you play a note then hammer on with left hand and then tap the same string on a higher fret. So if you played e string 3 fret hammer to 5 fret and then tap the 9fret with your right index and keep repeating. Eddie van Halen does it in eruption and a lot of other people do. I feel like his should be in the solo section in lead guitarists.