I jammed with Dean Wells just once, and he was doing these things that I couldn't really figure out until I asked him to slow it down a touch. It was pretty much stacked sweeps. I don't know really what else to call them.
[VIDEO]http://www.youtube.com/watch?v=Q-Eznyxe-qs]Stacked 5 note arpeggios - YouTube[/VIDEO]
I've heard similar progressions in Racer X stuff, most notably Bruce's solo on Extreme Volume 1, and Scarified (different note order).
[VIDEO]http://www.youtube.com/watch?v=dEXIDD5FCzY]Boullet / Gilbert inspired sweeps - YouTube[/VIDEO]