What is the fastest solo you have ever heard by buckethead? IMO its between http://youtube.com/watch?v=y9aY2CLrGx4 (around 2:30)
and
http://youtube.com/watch?v=eqrFesMGtvA
and maybe Nottingham Lace (some of his live versions) or Jordan
This tops it all... trust me
http://www.youtube.com/watch?v=cOyJRqUB6_E
Plus a little bit of Big Sur Moon and Pirates Life for Me and Chicken Picking!