In regard to scalloped fretboards, if they weren't scalloped, a lot of shred guitars used to use very tall jumbo fretwire. Many still do I'm sure. I used to have a shredder axe with frets so tall I could see light under my finger even when fretting a note. My finger never contacted the wood on the fretboard. Same effect as scalloping.
While I don't think I've ever playd a scalloped fretboard, I do find that tall frets make for a better physical connection between the string and the fret. There's less chance of the note suddenly dying on you because you accidentally released the pressure on the string while bending or something.
Nice score, Yngwiestein! Shred on!