Very good point about the left hand muteing for
sweep picking this is very important!
I find it very hard to tell somebody how to do it,
unless your sitting right accross from the student
then you can explain whats going on with your
left hand.
If they watch a video they can't see whats going on,
behind the left hand.
learning this from a live teacher is the best way to learn
sweep picking for alot of guitarists.
Mark
yours truly Mark Toman