This one's also a good vid. I'm doing the drill now actually. Decided to sit down and get some technique work in.
I'm not so sure: unless i'm mistaken he's using a different fingering. I'm trying the Billy Sheehan approach for the same reason as he (3-1-2-1 puts more work on one finger than 3-2-1). Don't want to get into bad habits.
warm up with iron maiden