Michael Romeo is pretty quick, and clean. I respect him much. I have 45 min or so of his instructional on mpeg. Not sure what one (if he has more than one). I could never get into Sym X. I'm not sure why. I have a couple of discs but I suspect I'm very DT/LTE/Petrucci minded that I tend to be a bit narrow minded.
Can you play any of Romeo's licks? He's fast!!!!
If you enlarged the nucleus of an atom to the size of a basketball in S.F., the electron's orbit would pass through Phili, PA. What's in between? Other dimensions. Freaky!